You don't need domestic billionaires though, foreign ones can do as well. For example, there are trillions of petrodollars that go through City/Wall Street and fund various initiatives around the world.
I think the Petro-billionaires are a good example of this actually. Their petro income has dwindled over the last 12 months as prices have collapsed. Even the Saudis can't keep up with their expenses. So soon, petro-billionaires will just be billionaires. What happens then? Will they get poorer because they have no actual skill at investing? or will the market keep giving them high rates of return for nothing more than renting out their capital during a capital shortage?
I think the Petro-billionaires are a good example of this actually. Their petro income has dwindled over the last 12 months as prices have collapsed. Even the Saudis can't keep up with their expenses. So soon, petro-billionaires will just be billionaires. What happens then? Will they get poorer because they have no actual skill at investing? or will the market keep giving them high rates of return for nothing more than renting out their capital during a capital shortage?