The one hard and enforced rule that would need to be in place would have to be to put a hard criminal legal cap on unchecked, society warping greed. By this I mean there are always some humans who always seek ridiculously disproportionate wealth and power to everyone else, allowing them to do so allows them to warp the culture and normalize that mindset, even making it aspirational to people that otherwise wouldn't.

Setting a maximum annual income with a 100% tax beyond a certain level, probably a couple million, would also be necessary for things to improve. Cue the millions of class traitor capitalism apologists who would cry tears of blood despite not having a small fraction of that in their bank accounts. "It would stifle investment!" oh so you'd have to include a lot more people in any large scale venture? The horror, amirite! “People wouldn't want to work hard!" because in a world where very few make that kind of income, not being able to hypothetically make 3 million a year would make everyone lazy amirite!

There are solutions, but too many peasants on the ass end of the problem are too busy defending the problem and the people that cause it, in pathetic hopes they will one day be invited to the little club of exploiters living like modern Pharoahs on the backs of most of society.