J. Edgar Hoover stayed in power for years because of the dirt/files/info he collected on people.
Louella Parsons was a Hollywood Reporter with a lot of power and if you did not kiss her A** she'd write all kinds of things to discredit you and hound you just like the doofus hounds people.
Vicious people do that or just normal folks who get lucky and get a chance to "get back at"? Would you?