First off, Sam, congrats on the success your memoir "For the love of money." Given that it's about your decision to leave finance, a world you called a "selfish, arrogant culture" at one point, how has the reaction been? I jest, but have you received death threats?
Biases lead experts and clients to make decisions which cause financial losses. An interesting question worth exploring is if there are any biases incorporated in internal guidelines, as day-to-day banking does not account for biases.
It is already known that humans are coping with a number of cognitive biases when making a decision or searching for a solution. After going through the list of all known human biases, the recognition of human's illusion of control becomes strong.
financial success for the client, would you advise on it? Your clients hope so. So I am going to let the cat out of the bag.