I think -- if someone needs/uses something like a cult and their life does change for the better, i.e. drugs, alcohol, crime, etc., fine. But, being in a cult will eventually hurt them and others. Leaving the cult -- doesn't mean they will retrograde their social progress.
Maybe, their minds are clearer and can continue to improve. I'd like to think most of us here -- are progressing as we get further away from our cult minds.