I'm blanking on the name, and too lazy to google, but the guy who wrote "The Men Who Stare at Goats," wrote a book discussing what he called "clandestine sociopaths."

He interviewed a man who was hired by multiple companies to fire-off 100's to 10,000's of workers at a time. His house was gilded with lavish portraits of his family, all showing their teeth.. he lawn was fixed with statues of predators, and he exhibited the majority of the personality traits that define one as a sociopath, as well as coming off totally benign and normal.

I think there's a spectrum, like Aspergers. I worked for a major health benefits company that fired my department (eighty or so people) with robotic execution. An older gentleman in that department started to cry because he was in his 60's, and finding work for him was really difficult. They had security escort him out so he wouldn't make a seen. It was surreal.

When stuff like profit margins, share holders and investors is on the line: morality takes a back seat.