From an LA Times story:
“…..Violent homicide aside, our elected officials often show many of the exact same character traits as criminal nut-jobs, who run from police but not for office.
Kouri [the man behind the study] notes that these criminals are psychologically capable of committing their dirty deeds free of any concern for social, moral or legal consequences and with absolutely no remorse.
“This allows them to do what they want, whenever they want,” he wrote. “Ironically, these same traits exist in men and women who are drawn to high-profile and powerful positions in society including political officeholders.”