This is why simply reforming / modifying capitalism won't work. There's not enough resources to give rich people outrageous amounts of wealth while also guaranteeing prosperity for everyone else.
planned economies don't guarantee prosperity either. You're handicapped if you look at the USSR, Venezuela, Cuba, NK, etc as models of prosperity.
Why is it that marxism seems to foster corruption, censorship, repression, and poverty? Don't give me any of that "IT WASN'T REAL COMMUNISM" bullstuff and try to weasel out of it. Communism and socialism are just inherently stuffty and don't account for human tendency towards acting in self interest. Mismanagement in planned economies causes poverty, famine, and enables corruption.