" Psychopaths don't change," she [Essi Viding] said. "They don't learn from punishment. The best you can hope for is that they'll eventually get too old and lazy to be bothered to offend. And they can seem impressive. Charismatic. People are dazzled. So, yeah, the real trouble starts when one makes it big in mainstream society. "

― Jon Ronson , The Psychopath Test: A Journey Through the Madness Industry