Beware of following a church leader who is all about himself.

Prof Eileen Barker of the London School of Economics, who has spent years studying groups like the Moonies and Scientologists, says there are similarities between OneCoin and messianic millennium cults, where people believe they are part of something big that is going to change the world - and no matter what the evidence, once they've signed up, it's very hard for them to admit they are wrong.
"When prophecy fails they believe more strongly," she says. "Particularly if you have invested something, not only money, but belief, reputation, intelligence. You think, 'Wait a bit longer.'"
Money might push people to invest in the first place, but the sense of belonging, of doing something, of achieving something, is why they stay, Barker says. "And in that sense it's cultic."

https://www.bbc.com/news/stories-50435014