The problem is fairly simple. The actual output of society is produced by a relatively small minority of skilled individuals that are not easily replicable (ie fungibility is largely a myth). We need those people to work a full week operating the machines that actually make all the output we all consume. But why should they do that if nobody else is working? They could just make enough for the small set of people tha…
There's an obvious positive sum trade: the useless people get to slack off (e.g. living on UBI), and in exchange the useful are paid commensurate with the value the produce. The useful are happy because they're fabulously rich, and the useless are happy because they're not the ones working so hard. The only real losers are the social status masters, and social status is positional, so they'll always be a small minority.
Unfortunately that small minority controls the cultural narrative. They can reinforce the natural human tendency to zero-sum thinking, and they can hold out the false hope that the useless can become successful parasites too. Everybody is born equal, so if you're not rich it must be because you didn't work hard enough! It's easy to fall for it when your brain is hard-wired with the just-world fallacy.
This combination of cognitive biases and active manipulation means I don't expect to see any improvement before environmental collapse renders the whole thing moot. The 1% rule and everybody else is either overworked or underpaid. You'd have to think like an economist to even see the possibility of escape, and who wants to do that?