I thought the whole point about Dune was that even the 'good guys' are really pretty messed up people at best and that you should absolutely not be taking moral

I thought the whole point about Dune was that even the 'good guys' are really pretty messed up people at best and that you should absolutely not be taking moral advice from any of them. See every idiot AI-hater accidentally endorsing slavery by a bunch of idiot psychotics by saying "We need a Butlerian Jihad".