That's probably what makes psychopaths and narcissists that dangerous on humanity in the first place: deceiving the world daily. Psychopaths displaying antisocial traits are merely the extreme reaching the extreme level of endangering a human being life: the physical existence. But so many criminals among those troubled souls will never be held accountable by the current law system for their very subtle, yet life threatening psychological abuse, given that they push their victims to lose their sanity and end their lives more frequently than we would like it to be true.