I am not close friends with them, nor would I want to be. Two people that I am thinking of scammed my grandfather from the little money they owed him, and did it in a disgusting way.
Another person who I have in mind, who is actually worth well over 5 mil, left his office to babysit one of my fathers 11-dollar per hour workers to make sure that he is not wasting time. When the worker made a mistake, he told me, (and he said it at least five times,) that he needs to do it over "Of Zain Cheshbon! Of Zain Cheshbon!"
I definitely may be wrong, but this is just a strong feeling that I have with people who became super rich from business.