Of course, you might be talking about mental cruelty, which is linked to the drive for psychological dominance. I.e. it's a means to a gratifying end, not an end in itself.
I guess we can only define fulfilling as it makes sense to us. The main objection to psychopathy is that it is harmful to others. If you are an empathic person this matters to you, if you're not, you're already on your way to being a psychopath.Psychopaths certainly miss out on the joys of intimate emotional connections with others, but are their lives truly less fulfilling than that of most normal people?
So you want to trade one disorder for another? That's not a rational or sustainable solution.A sizable portion of our population lives in a state of constant dread, shame, anxiety and deep uncertainty.
Better adapted like superbugs? Yeah sure, if you want to be a parasite, you might as well be one that's immune to the usual prophylactics.That is true, but pathological conditions are always defined within the context of a society where the alleged patient resides. In our society, pathological risk-aversion is more serious of a deficiency than pathological risk-seeking. The psychopaths are currently better adapted to our society, whether or not that may change in the future is another topic.