I believe that Prince is a practicing Jehovah's Witness (born a 7th Day Adventist). Considering the absolute modesty of his clothing, actions, and the modesty of the clothing his female dancers wore, I think you are way off in your suppositions.
I am no pince fan other than a few of his songs i like, but people forget there was a legal reason for that whole symbol game.
He was in a contract dispute with his old record lable. The only control they allowed him was the name he used SOOoooo, he made it something they could not easily promote.
It was all a contract negotiating ploy.