Moral Challengers

I was reading some research done by a professor at a Midwestern University of a fraternity and the moral development of their members. Previous research has stated that membership in a frat does little to enhance moral development. However, this researcher found a higher correlation with a particular frat and said it was effective in maintaining the cultural and moral values of its constituent membership. While I admit that I was slightly surprised at reading this--a frat with morals? Great stereotypes and Animal House visuals--the researcher continued to talk about his interests in morality research.
He stated that there are many aspects of college student development - intellectual, physical, psychosocial, vocational, spiritual, and moral. Previous research has indicated that college fosters moral development, but how? He always felt that faculty played a large part in affecting students' thinking. He said that in his research it become obvious that professors aren't moral educators, but moral challengers, getting students to question their thoughts and beliefs.