There are quite a few species on this planet that stay in monogomous relationships where the father takes a very active and important role....why should man be different?

Men ARE engineered to be fathers...mankind is engineered to BE the superior species on this planet and therefore has incredible range of behavior and committment abilities.

I think it's weakness to use our sexual appetites as an excuse to be man-whores or sluts and to excuse off any responsibility as a result of this behavior!