Narcissism defined by the DSM-IV shares traits with sociopaths, like lack of empathy.
My take is that narcissists screw people over every way they can within the law, and many can be considered “successful”, as in become political leaders or have lucrative careers.
True sociopaths lack self control and end up killing folks until they are caught.
“True sociopaths lack self control and end up killing folks until they are caught.”
As I recall from the book few sosiopaths actually end up killing, not that they would find it reprehensible but only that it is not necessary to acheive their goals or are smart enough not to cross that line unless they believe it to be necessary. They are dangerous and many of them do kill.