It depends on the person. People usually socialize with people that are like them. Like attracts like.
Scum usually will marry with other scum.
"High class people" marry with their "own kind".
With royal people there has been a lot of incest because of that reason. It was/is a tradition to marry their cousins etc. They want to keep things in the family.
Funny thing is i'm kind of both. Back in school i could get all the girls because they where gold diggers but i'm a very bad boy in a certain way.
I'm a white collar bad boy, just like a lot of business people or politicians are. Sometime's you have to do what you have to do...
If you want to make profitable deals in business you do it for yourself not for someone else. You try to buy things to cheap and sell them to expensive. How does it profit the other party that much? People screw each other over all the time. That's the whole point about investing. You try to outsmart other investors. You are not there to make other people rich.