Along the same theoretical lines, it seems plausible to me that the inner stresses of being an asshole might do the same thing. So maybe there's some justice in the world after all.
I think the trick is not caring that you are one and probably believing you are always right, everyone else doesn't matter and that you are the center of the universe, so that the side effects really don't apply to you because that's your reality no remorse to dwell on.