What this planet needs is a Magna Carta of sorts that limits the power of all people, corporations or other entities or groups. Simple as that. We need limits! Extreme inequality will ALWAYS breed civil unrest.
Guys we just need a totally non corrupt world supergovernment that limits the power of the rich and the incentive they have to do this is "because it's the right thing to do"
Supergovernment? Putting words into people's mouths, I see.
We limited the power of monarchs, why would it be wrong to do that for all powerful people and entities? I say that we need to do it for exactly the same reasons. Limits to power is healthy for everyone, even the super rich. My logic holds true. Does yours?
But I like your idea of a world government because, you know why?... we need to work together rather than against each other. Let's end zero sum game theory.
I'm not going to get dragged into creating a new government framework with you. I'll leave that to the political scientists. What I'm saying is that we need limits on power. Limits on income existed before 1980 and were dismantled in Regan's trickle-down economic policy. Taxes used to be really high for the ultra rich after WWII to around the late 1970s. Limits existed in other forms too like anti monopoly laws, more regulation and market oversight. What I'm suggesting is simply taking those that once existed and codifying those things into a charter, like the Magna Carta did for kings, so that they can't be repealed by changing governments. It's an idea, not naive at all.
Greater equality is essential for well functioning societies and well functioning economies. It's good for everyone, even the ultra rich... they just forgot it. Read Ray Dalio's The Changing World Order and he explains this quite well. The man is a billionaire himself, and he advocates for a redistribution of wealth and greater economic equality. His research echos much of what is tough in history: inequality always breads social unrest and political upheaval. It's what revolutions are made from.