If you had a brain scan of pleasure and a brain scan of happiness, do you think they'd be identical?

I think you understand that unbridled pleasure eventually leads to jadedness, because you excluded drugs. The other forms of pure pleasure do the same thing but over a longer timescale. Yes, you'd have a truly amazing time at first. Why do a lot of rich people turn to drugs or gambling?

I don’t think it’s easy to get jaded about unrestricted power over people. I think that’s what the human condition is all about.

It may not be easy but it's bound to happen if the results are predictable.

Added to that, it's normal for an absolute monarch to be paranoid.