Being too rich to have to worry about money spares you a shitload of stress and anxiety.
As does being too amoral to worry about how your actions affect other people.
They probably don't get ZERO stress and anxiety, but they get so little compared to regular people as well as access to top notch healthcare and the best food that it's literally not unusual for them to live at least a decade longer as a result.
Yeah, I won't argue that these sociopaths don't have lives that cause them to be particularly stressed or anxious. Probably should have just assumed that.
But can we maybe start calling these people monsters because of the choices they make, not because of a disability they may or may not have? The popular idea that being a sociopath automatically turns you into the lovechild of a heartless CEO and jack the ripper (with a dash of narcissist mother in law) is just... wrong. There are plenty of sociopaths out there in the world trying really hard to fit in to society and who by any regular measure aren't bad people. Hell on top of that, it's a spectrum disorder - plenty of sociopaths out there can feel affection for other people, it's just harder for them to do than the average.
I guess it's just kind of tiresome to constantly be scapegoated as to why these people are awful. "Oh, they must be sociopaths, that's why they're like this". No, listen, they're like this because they are awful people. Being a sociopath makes it easier to be an awful person, but the guilt still lies with them and the choices they make, not because a disability made them like this or some sort of genetic fatalism.