religion sells the most important product that man needs HOPE AND as long as man has a need for hope there will be some belief system out there selling it.
James, in my opinion, conformity, for most Jehovah's Witnesses is as important as hope, if they are not immediately threatened.
Many people can be easily convinced to feel comfortable or safe, in relation to rest of the world, amongst a 'special' group that is controlled to look and act similarly, and that conformity is one of the best selling features of the WTS, outside of utilizing the fear factor of losing ones social support.