This is an interesting thought experiment. It seems more about what the 'sociopathic' elites are trying to shape society into rather than what it will actually end up as. As the author pointed out, this configuration appears to be unstable. I think the main flaw is that it makes the assumption that all those in the middle are necessarily 'clueless' and that all those at the top are necessarily 'sociopaths'. Although members of the elites could in theory manipulate governments and the monetary system to mostly reward sociopaths, they couldn't prevent certain highly productive non-sociopaths from becoming part of the elite through alternative means (outside of the main sociopath-selection process).

But IMO, the most challenging part would be to keep the 'clueless' class clueless. In the internet age, this is already proving to be a challenge. There are many in the 'loser' class who know how the world works and their knowledge will trickle up to the middle. Social classes aren't sufficiently sealed off from each other to prevent the trickling up of ideas.

Societies can't function on the basis of lies when everyone is aware of the lies and they are aware that everyone else is aware of the lies... At least not for very long.