I know the study you're referring to (Lichter and Rothman). The problem I have with it is that 'businessman' is an utterly generic moniker for basically any high paying white collar job that involves chasing money. CEO, banker, financial planner, investment analyst, accountant, stockbroker, economist, treasurer, venture capitalist, small business owner... there are so many professions that the study crushes together to give a false pretense that business is being unreasonably demonised. If were to conflate every blue collar job, you'd find a similarly high figure.