"Psychopathy is a personality disorder manifested in people who use a mixture of charm, manipulation, intimidation, and occasionally violence to control others, in order to satisfy their own selfish needs.(...) Interpersonal traits include glibness, superficial charm, a grandiose sense of self-worth, pathological lying, and the manipulation of others. The affective traits include a lack of remorse and/or guilt, shallow affect, a lack of empathy, and failure to accept responsibility. The lifestyle behaviors include stimulation-seeking behavior, impulsivity, irresponsibility, parasitic orientation, and a lack of realistic life goals"
"What doesn't go unnoticed is the fact that some of the character traits exhibited by serial killers or criminals may be observed in many within the political arena. While not exhibiting physical violence, many political leaders display varying degrees of anger, feigned outrage and other behaviors. They also lack what most consider a "shame" mechanism. Quite simply, most serial killers and many professional politicians must mimic what they believe, are appropriate responses to situations they face such as sadness, empathy, sympathy, and other human responses to outside stimuli."