I see two conflicting motivations here and everyone has to decide for a tradeoff between these two: Being happy and being rich(er). Do what the Market wants me

I see two conflicting motivations here and everyone has to decide for a tradeoff between these two: Being happy and being rich(er). Do what the Market wants means making a tradeoff in favor of earning more (and becoming rich(er)). Doing what you want to do means making a tradeoff in favor of your happiness. You will perhaps earn less, but what you do is more in tune with your values. A tradeoff is not always required and both of these motivations may become synergies, but in the authors case, I think this is what happened.