now, why this is so, is a good question.
Maybe it's due to a lack of first-hand experience, understanding of real life. Similar to how children see the world. A well developed intellect coupled with a dearth of wide-ranging life experience operating within the field of judeo-christian morality very formally perceived may give you that. In fact, this is probably the explanation.
Remove these professors from a self-regenerating social milieu, take away their job security, and let them run a 7/11 store for a year -- then see what happens.