I'm not going to get upvotes for that, but some of humanity's most profound achievements happened during times of slavery and feudalism. At times even majority

I'm not going to get upvotes for that, but some of humanity's most profound achievements happened during times of slavery and feudalism. At times even majority of population labored so that the privileged few could pursue philosophy, science, architecture and art. Ancient Greece, Rome, medieval cathedrals, sculptures and paintings. Great wall of China. Oppressive regimes can throw incredible numbers of people at the problem (although recent research suggests the pyramids of Egypt were built by paid workers). My point is that substantial achievements happen even when the privileged people are largely lazy, spoiled and delegate tasks. It's different kind of achievements than in a more egalitarian society (like a republic), perhaps scientific progress is the biggest casualty.