It's such a bizarre thing to listen to hear Manson sing. Like watch Hitler do a stand up routine or Vlad the Impaler leading a Community Theatre project. He's such a dreadful, fascinating person. I think that it's fair to say, objectively, that Manson is in someway 'great', one compelling definition of greatness is 'the property possessed by something or someone of outstanding importance or eminence'. You'd be hard pressed to find a definition of 'greatness' that affirmatively states that 'greatness' is derived from 'goodness'. I think that Manson is/was rotten to the core, but his impact upon society was indeed 'great'