I studied economics, but not business. Since when do business schools work with complex mathematical models? I thought they were just the place where 'soft' skills like leadership were trained with lots of exercises, in a practical but completely unmathematical way. Surely they would not study agency theory?
I don't think studying economics affected my greed or my guile, and I never had much of either. It did brainwash me in another way. Economics is the religion of the invisible hand, and I really did believe that if you just let the market do its magic everything would fall into place. There is this belief that greed will make you do something useful in order to get paid. For me this has never meant that 'greed is good'. My interpretation of this was that the market will reward you for doing useful things.
I went on to do useless things anyway, but it took me some years to be proud of it. And having lived through a few bubbles I don't find the market so magic anymore.