I read a couple of sci-fi stories where Earth had colonized a bunch of planets in the full misery of colonialism tradition. Earth kept vastly better technology for itself and every so often "Gamers" from Earth would remote-control super powerful bodies on other planets and go on a rampage of murder, sexual violence, and terror basically playing CoD but in real life in the middle of real cities. It was so incredibly disturbing it kind of ruined some otherwise great Sci-Fi stories.