The Dark Triad is a constellation of findings from the dark (socially aversive) side of human nature.
Overlapping components of the Dark Triad:
(1) narcissism
(2) Machiavellianism (manipulation, exploitation, self-interest, lack of "morality")
(3) psychopathy (antisocial, impulsive, selfish, callous)
A person exhibiting the Dark Triad may:
(1) choose friends for strategic purposes
(2) signal virtuous victimhood
(3) show malevolent behavior
(4) be manipulative
(5) be exploitative