I don't think the JW creed is benign. I was told by a couple of JWs 24 years ago that my baby son would have been better off dead than receive a life saving blood transfusion! Just recently in the UK a teenage JW boy died rather than have a blood transfusion, which would certainly have saved his life!
I'm sure that some misbehave, but in comparison to many others I find them 'safer'.
(You won't find me joining'm though.)