JWs love to congratulate themselves for being -- as they see it -- morally superior to "worldly" people. However, if one does something right to get a reward (eternal life in paradise, status in the congregation) or refrains from doing something wrong to avoid punishment (death at Armageddon, disfellowshipping), is that virtue or calculating self interest? Is virtue only what one does and not why?
How many JWs have you known whose behavior, which they take as evidence of their moral superiority, would significantly change if they were no longer concerned about Jehovah's carrot and stick?