Mmmkay--how about Locke, Rousseau, Mill, etc.? Confucius, for that matter. Plato.

It's not like there isn't prior art regarding how to restrain the would-be dictator, including in a society where individuals are relatively empowered, and what moral qualities one would ideally like in a leader.

That we embrace a culture of rewarding sociopaths is not entailed by having so-called "slave morality" (i.e. being a halfway decent person in a large impersonal society). It's a danger everywhere, and we see plenty of instances of sociopathy-in-leaders being adequately curtailed in places where these traits are particularly valued (e.g. Scandinavian countries).

How about some data regarding the "white" part of your core question? https://link.springer.com/article/10.1023/B:LAHU.0000046431.93095.d8. Oh, wait, it doesn't show much of anything, does it?

Is there any reason for the title aside from it being ostensibly offensive but socially-passable-at-least-on-Medium clickbait?

This seems considerably less well-considered and well-put than usual. Maybe you want to try a revamp. You have some good points, but they're interspersed with a lot of not-good points.