"In 1996 Baumeister, now teaching at Case Western Reserve University in Cleveland, co-authored a review of the literature that concluded that it was, in fact, 'threatened egotism' that lead to aggression. Evil, he suggested, was often accompanied by high self-esteem. 'Dangerous people, from playground bullies to warmongering dictators, consist mostly of those who have highly favorable views of themselves,' he wrote.
It was an astonishing theory..."
I can imagine a group of people who might not be astonished; anyone who has been bullied, and then told they should feel sorry for the bullies because the bullies had "low self-esteem". At least, when it happened to me, my first thought was "Low? More like way too high."