How sustainable investing f**ks with bankers' brains š¤Æ
- Hannah Duncan
- Apr 1
- 6 min read

āWeāre not here to save the world,ā the boss said. āWe exist to make money.ā Roose, 2014
Everyone knows that we need to stop investing in fossil fuel companies and planet polluters. Thatās old news. So why are wealth managers still relying on them in mainstream portfolios? Why do they keep feeding these crappy companies with more and more money?
Here are five psychological reasons why wealth management just canāt seem to let go.
1. A trillion-dollar game of gangsta chickenā¦š¤
Have you ever heard of The Prisonersā Dilemma? Itās a game theory concept, often used in economics to explain stupid behaviour.
Hereās the dilemma: Youāre a gangster and youāve been busted along with your partner in crime! Youāre each sepated and thrown into damp prison cells and youāve got to think about what youāre going to say to save yourself. You could throw your accomplice under the bus, blame that baddie for everything and insist on your innocence. Or you could stay completely quiet, be a good friend and hope she does the same. The trick here is that if you both act selfishly, then the cops have evidence against both of you and youāll go down together. But if you both stay quiet and be selfless, then youāll get away with it and walk out scot-free.

⦠But who are we kidding? Youāre baddies, youāre here to be bad and of course you behave selfishly. Down you go. Thatās what a bunch of researchers think is happening with Sustainable Investing today (Diekert 2012, Heugues 2013, Ostrom 1990 in Mielke and Steudle 2018). Managers donāt want to take a leap of faith alone.
They donāt want to be the first to bring up Sustainable Investing to clients, (Oxford Risk, 2019). So, itās like a game of chicken. Of course, they could make a jump towards real impact investing. But then, what if the other investment managers donāt? What if theyāre alone and it goes wrong? How would they explain that one to their boss and clients in the sober light of day?
2. Catching a rabbit and missing a stag
But weāre not done with game theory yet. Buckle in. Similar to The Prisonersā Dilemma, but with some nuances, this oneās called, The Stag Hunt. Itās an old French economic theory, belonging to Rousseau in 1754. So youāll need to pretend that youāre an 18th Century Parisienne aristocrat for it to work⦠(This is not a good one for animal lovers!)
Imagine that youāre tearing through the French forestry on horseback, with the wind blowing through your long, curly wig. Youāre here to hunt and ⦠Sacre Bleu! Youāve spotted a massive stag. Magnifique! But wait⦠there are other hunters too. All of you want the stag. Youāll have to work together to capture it. One little twig snap and it will sprint away forever.
As you glance at each other with your shifting eyes and twiddled moustaches, making a common plan with silent gestures⦠you notice something else. A petit lapin! A little bunny has bounced over to you and (sorry animal lovers), youād love to shoot it. It would be easy and instant, but youād lose any chance of getting the stag. What do you do?
According to Mielke et al (2018), that bunny does not live long.
Mazzucato and Penna, (2015) stress that asset managers need to work together to make a real difference to sustainable investing. But time and time again, easy money and profits sabotage the goal.

Short-term gains with global manufacturers, plastic producers and energy companies keep trumping the long-term goal of sustainability. You canāt capture something like climate change, when you keep investing in pollution. Our managers just canāt resist the instant gain of an easy rabbit. But thatās not the only reason that theyāre putting short-term gains first. The issue of winning trust and Fiduciary Duty comes into play as well.
3. Building trust in the wrong direction
You know when youāre already in trouble, and so you have to be really extra careful not to make it worse? Thatās kind of wealth management. You wouldnāt think it from the way employees dress or go to swanky bars⦠but theyāre under quite a lot of stress (Roose, 2014).
The investment industry has faced more and more public criticism since the 2008 financial crisis (Earle, 2009), when the mask slipped for good and everyone saw the greed underneath.
To mention a few, itās since been condemned for:
Sexism (for example, the 2016 Women in finance charter);
Fraud (for example UBS was fined 3.7 billion euros for tax fraud in February 2019);
Money laundering (HSBC laundering $881 billion for Mexican drug cartels in 2008);
Insider trading (UBS compliance officer leaked confidential information making more than $1.3 million jailed in June 2019)

There are SOOOOOOOOOOOOOOOOOO more, but you get the point. And with every fresh scandal, we build more of an image of how bad wealth management can be. With movies like The Wolf of Wall Street, Money Never Sleeps, The Big Short⦠playing in the background of our minds, who doesnāt think the industry is tainted?
What this does in terms of client mistrust and employee confidence is difficult to measure but may be a powerful psychological reason to retreat away from any risk or change, and focus on short-term wins (Mielke et al, 2018).
Iām sure that deep down, many managers do want to make a positive impact on the world. But they may feel theyāve burned out all their good will. They donāt have the leeway to lose their clientās money and say that it was for the environment. So, itās better to just invest in blue-chips and oil, to earn back some trust. Right?
4. The bullsh** excuse of Fiduciary Duty š„±
Wealth managers have a Fiduciary Duty to clients. It means that they need to act in the clientās best financial interests. And so, for many this has become a bit of a fail-safe. āIād like to save the world, but I need to make money for my clientā, that kind of thinking.
Recently, the Tump administration banned the consideration of Environmental, Social and Governance (ESG) Investments in pension funds. Thanks mate. They cited exactly this reason, āFiduciary Dutyā. Itās ironic, because itās using responsibility as an excuse not to be responsible. Brilliant.
Sadly, Fiduciary Duty has become a blanket for managers to hide under, like a baby. A bullsh** excuse to keep lining the wallets of oil tycoons and planet polluters, to the detriment of everyone else.
Over the past years, studies have shown that managers are feeling ātrappedā (Mielke and Steudle 2018) by their fiduciary duty (Goldman Sachs 2015) and maintaining the status quo. They feel like their hands are tied when it comes to sustainability.
Whatās needed is some clarity and leadership, which brings us to the next barrierā¦
5. Weāre all waiting for a leader
Daddy issues. If youāve ever worked for a wealth manager, youāll know what Iām talking about. Heads are constantly turned upwards looking for approval. And Iām not blaming anyone, weāre talking about millions or billions of pounds at stake. Iād double check with my boss too.
When I worked in wealth, I thought the head-craning eventually stopped with the CEO. And we were all like little ducklings, who followed him* and his mighty duck tail comb-over.

I thought the CEO looked down at all the people swooning beneath him and directed everything, like a puppeteer. However, after studying it, I realised that heās looking up too. Itās human nature. These great wealth management C-Suites are looking for sustainable leadership, just as much as everyone else.
Rather than pioneering solutions, the vast majority of us are ālooking to the systemā (Banbury et al 2012) to solve sustainability issues. And thatās partly why everyoneās standing still.
The irony is that companies often follow money and are looking to investors for guidance (Oh et al, 2013). Dāoh!
But investors are waiting for a leader to tell them to be more sustainable. And governments generally want to win the favour of investors and companies, so theyāre not going to rock the boat too much.
Weāre all glancing at each other, like nervous first dates, but nobody is taking the lead. The only people crying out for sustainability, are Gen Zs like Greta Thunburg. But who listens to them? They donāt have any money.
Thatās why when people like Larry Fink speak out, everyone jumps to attention. Daddyās home. But where are the consistent leaders? Whereās the FCA of Sustainability? We need them. Itās too deeply ingrained in our psyche.
The planet is screaming for ESG leaders in Wealth
We need leaders. And while the role is open, Iād like to suggest that we fill it with people who are not white, middle-class and middle-aged men for a change.
We need more women, more ethnicity, and more mind-sets to make this work. People who wonāt accept green washing, and who are brave enough to turn down money if it means harming the planet. People who are not afraid to play chicken, resist short-term gains, re-define trust and re-direct the market.
Sustainable leaders in wealth and asset management must have real power, real teams and real resources. Itās not fluffy, itās not ānice-to-haveā, itās how we prevent the world ending. What could be more important than that?
How are you going to trade derivatives when you canāt breathe?
We need the A-Team. And we needed them yesterday.

.... *Itās nearly always a man. One time, when Iām really fired up, Iāll write about how women have to work twice as hard to get leadership roles in finance.



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