Lyric discussion by JJKelsall 

Cover art for Don't Dream It lyrics by Rocky Horror Picture Show, The

I think this song explains how Frank became side-tracked with whatever his 'mission' was in coming to earth. He became infatuated with 'sins of the flesh' and gave himself over to 'absolute pleasure,' and now his purpose is to make others do the same. Clearly this didn't sit particularly well with Riff Raff and Magenta, hence their rebellion and the line, 'you're lifestyle's too extreme.

My Interpretation