The psychopath in a suit is nothing like the ones that Hollywood forces on us. Axe wielding mass murderers are very rare. There is a more common psychopath that infects every level of society. Sociopaths and psychopaths show anti social behavior and an emotionless state towards the pain of others. They have an aggressive narcissism that may manifest to others as superficial charm, grandiose sense of self worth, shallow relationships, lack of remorse, and failure to accept responsibility. This personality needs constant stimulation, impulsive actions, poor behavior control and a a parasitic lifestyle. As a result they view others as a means to an end, they are sexual promiscuous and seem to excel in deception.
A perfect description of Bill Clinton.