I don't think it's being "worldly" you're having problems with, it's being a non-jehovah's witness.
The JW belief system "kills" off the natural person (the old personality) and replaces it with a constucted one (the new personality). This WT personality is held in place by a scaffold-like belief system that causes the person to believe that if the belief system were removed they would fall down. This is not true, unless you have a serious emotional issue or brain damage, you are strong enough to stand alone, but many don't want to.
Being in a high control group can be like cozy blanket of group-think or rather non-think that many are just simply more comfortable with.