Yes, the rulers and their families. What's good for the families is by extension good for the ruler. I'm not sure it was a needed "fix"?

I'm also not sure that us all living like people who are not indigenous to places like Europe, China, or India actually results in a better world, though I do agree that it's one without anthropic climate change.

You're imagining a state that's stable but not one connectable to the present day. We need central government because of the way things are, not because of the way they could be in an arbitrary reimagining of the world.