That's a flight of fancy veering off into science fiction. And not even very good science fiction. I think LONG before all wealth belongs to 100 people, the peons decide it's fun to eat the rich.
What IS a possibility is that AI-enhanced people (or just AIs themselves) end up with enormous power and wealth simply because they are smarter than us. But part of their intelligence would be knowing how much of that wealth to share so we (normal humans) don't revolt. Or even express dissatisfaction with the system.
I read a nice series in which somebody taps into an interstellar "internet" of sorts and they download an AI that is better at business than anything human. In effect it's a virus for whole civilizations. The human who did it became very rich, but the corporate AI entities become the dominant part of the human economy.