Summary: Machiavellianism in psychology refers to a personality trait which sees a person so focused on their own interest, they'll eagerly manipulate, deceive and exploit others to achieve their goals. Ruthlessly ambitious and completely devoid of ethics or a moral compass, Machiavellians are everywhere in every walk of life. So, if you're unfortunate enough to know a Machiavellian, beware, because you're just another stepping stone to their success.
