It you think there was something wrong with Little Richard becoming a preacher then you don't know a damn thing about Little Richard. The preacher was in him, and it had to come out. The last time I heard him talk about himself, his sexuality, and his faith he said (I paraphrase) 'God knows who I am and he's all right with that.'

As far as American rock and roll (post-Elvis), how about Link Wray, the Sonics, the Wailers and hundreds of other artists?