No question about it. Mind control is more than a trope. It’s a bona fide kink.
You can verify this with a simple Google search (that you should probably do from home, when the kids are asleep or your parents are out), or you can take my word for it: The idea of bending another’s will to one’s own, for whatever purpose, is something that a great many people find fascinating, in that way.
It shouldn’t be surprising: mind control, like the most popular kinks, is all about power differentials – the savant who can exercise said control being the “top”, and the poor, usually uncommonly attractive and unattainable shlub on the receiving end being the “bottom”.
My novel Rasputin’s Bastards is all about mind control. The story covers decades in the lives of specially-selected and trained psychic powerhouses, working on behalf of the old Soviet KGB against their counterparts at Langley, in an Amazing-Kreskin variation of the Great Game. The psychics in this book engage in astral projection, and are able to enter the minds and bodies of properly-conditioned sleeper agents.