A fallen sinner can claim to be a Mormon, or a Baptist, or an angel! Doesn't mean he IS one!
And those are just the high-profile cases.
IMO, the problem is systemic. Anyone can set themselves up as religious demagogues, and make good money doing it. In fact, that was the hit on Tilton: He decided in college to go into the "evangelical religion racket."
There's no accountability and no standards. The Bible can mean what he says it means (I imagine the Thompsons were thinking "spare the ROD and spoil the child").
It's a mass of confusion and ripe for corruption. You see it time after time after time.