This reminds me of the pickup artist scene and digital persuasion behavioral engineering: trying to sell some "revolutionary", "secret" form of human manipulation. The equivalent of a Love Potion No. 9.
I guess we're talking about a time of greater ignorance when the supernatural and "spirituality" were taken for-granted.
Nowadays, it seems like NLP-ridiculous, psychobabble, fortuneteller magic. Certainly, charismatic cult leaders exist and appear to project an ability to influence people.
Anecdotally and qualitatively, there does seems to be a phenomenon where respected, older, attractive men of higher relative status are able to influence groups of younger women. It may be the exploitation of competitive human nature to seek the approval and favor of the desired object. I've seen it in social and work situations.
Examples:
- A pleasant chat with most of an NCAA D1/D2 womens' sports team.
- Leading a tour of mostly ladies.
- Work meetings or groups where, again, it's mostly ladies and/or younger people. When facilitating, I shut my trap except to ask questions, coax the more junior members and shy ones to speak-up if they have something. If only the competitive talkers take all the space, the others maybe biased to those views, resent not having a voice, or give-up on participation.
- Being the only dude in a given situation.
I wouldn't call it "mesmerism," maybe "crush compliance" or "competitive social behavior."