Greed is a weird thing, if you listen to 1% bankers you can hear after a point it's not actually about making more money for the money's sake, it's making more money than your peers.
Toxic hypercompetetive culture.
Before you were the best artist / programmer / chef in your small town. Today you or your company sells to the world. #1 / #2 takes most/all, everyone else loses.
Sorry but that's just the nature of the world today.
It doesn't have to be. The historic balance of power is that the rich need rule of law to stay rich. And rule of law requires participation of the majority. So the rich have to appease the mob in order to keep their riches (and their heads). I don't think we're anywhere near the tipping point of this equation in the U.S. But it's always there as an option of last resort for the disenfranchised.
What about jobs people get in developing countries and get them out of poverty?