You tell me, we live in the same world. Humans universally have serious issues with greed, selfishness, and all manner of other ugly things. We are not basically good, we are basically evil.

A twisted man has a sort of twisted Midas touch, so that even if he has natural abilities in managing wealth things become tainted. He may even realize he's a dragon (speaking as a fellow twisted man). C.S. Lewis had some things to say about people who suddenly realize they are dragons in "The Voyage of the Dawn Treader."

The problem isn't wealth, it is our hearts.