Everyone. That includes the small number of people hoarding a majority of the wealth. Everyone needs to contribute to the wellbeing of society as a whole and nobody is exempt.
I'd like to emphasize that the above should be immediately obvious. The fact that it's not does not bode well for humanity's future.
Billionaires simply _should not exist_. The fact that the power to shape societies is concentrated in so few can account for many of the existential threats we face today. AI is not "the problem", it's merely the latest symptom of our broken system and the prioritization of the wrong goals and outcomes.
EDIT: grammar
Good luck taking away the detached single family homes, pickup trucks, SUVs, commercial flights, out of season fruits/vegetables, and imported manufactured goods. The people that expect those things are the “ small number of people hoarding a majority of the wealth”, and there are quite a few of them (probably 1B+ worldwide).
A quote that stuck with me: "We are all crew on Spaceship Earth. There are no passengers." And anyone that thinks they are the captain, is wrong.