Technology

Money isn't quite zero sum, but you don't need to zoom in very far for it certainly look like it.

Then you start trying to think about better solutions. If you've got a decent understanding of human history you can see the solutions you come up with played out over the last 5,000 years of human civilization with various levels of success or massive failures resulting in war, slavery, or famine.

Then you think about what would happen if we all return to subsistence farming to avoid all that where our entire world be what we see with our eyes in the morning when we get out of bed. Then again you realize you're back to war, slavery, or famine except on a micro scale with just yourself and your neighbor instead of on a nation-state sized version.

The least-worse (not the best, because there is no best) solution I can think of at the moment is a nation that jumpstarts on war, slavery, and/or famine, and transitions to an egalitarian socialist society when its powerful and rich enough. That still doesn't remove the very human element of corruption or exploitation that just want more than that 'perfect society' would produce.