Joel Olsteen, Benny Hinn, Kenneth Copeland, Jim Bakker.........to name a few. Bakker, I believe, is the only one to have gone to prison for it, but the rest and others like them have still scammed their followers out of alot of money. They may or may not have done so legally, but it still comes down to the same thing. They are living large, while the congregation is living paycheck to paycheck.
Here is a story listing some of those I mentioned......though the story also goes on to include others and for different reasons.
Fraud, private jets and a Lamborghini: 10 televangelists who have faced controversy
The whole scam is in what they are preaching, that has little to do with God's Word......but their own twisted ego