I think most people, correctly in my opinion, look around at the powerful people in our society and think that there is ~0% chance they willingly hand over most of their wealth for the betterment of humanity. Pretty much every single action from people like elon/trump/altman/thiel shows the exact opposite. They would much rather have millions of slaves they can treat how they like, rather than a bunch of independent citizens with rights and opinions.

If AI does live up to the hype the surpluses might end up distributed to support basic needs for everyone, but there's no clean path to get there; it will take a long messy and likely violent fight to get there. Most people are currently comfortable enough to not want to go down that road, things will need to get a lot worse before they get better in this respect.