Do you have to give back the money if you're found out to be a charlatan?
Absolutely, no doubt about it
No, I have morals that prevent me from being a shit stain con man.
You'll have to ask your god. I suspect that it will turn out to be okay.
You don't have to believe in it. You just have to convince other people you do so.
Lets say for a million $$$$$ a year, will you fake being a religious preacher? Assume you can be a great showman.
A million doillars a year to lie to people and make shit up, hell yes! Count me in!
Begs the question, why haven't you done it already?