Much of this makes perfect sense, but: can a wealthy person be trusted to make decisions (or advocate policies) that affect the entire world population? Because his thinking will be influenced by how the world affects his wealth. But he will be generally more rational in decisions in his personal life because he is financially secure enough to not be governed by fear. The reverse will be true of a poor person. Perhaps even well-meaning billionaires will subconsciously advocate policies that maintain the status quo, because it is the status quo that enabled his wealth in the first place.