“Constantly fearing for your life”
Psychopaths have no fear. None.
Ever.
And like Sociopaths they have no human empathy.
They make great war heroes.
Neither gets PTSD because they don’t experience psychological trauma.
Of course then there are the combat vets that were never really under serious threat.
You sound like you are either a counselor or been there done that.
I read Dr Robert Hare’s “Without Conscience” and learned a great deal about psychopaths. And with the understanding I got from that read, yes I can see where a psychopath would not be bothered.
Brutal war would be a paradise for Ted Bundy types. We are watching a Netflix documentary on this guy right now. Just brutally beating to death random young girls is really hard to grasp.