God & Objective Morals

[Neo-Scholastic]

...The only way to have a real, working moral system which is of benefit to everyone is for a social contract to evolve.

Any social contract would serve as a binding code of conduct whether overtly or tacitly expressed. Establishment of such a code would come from some cultural/political process. Enforcement of the code of conduct would range from social pressure to criminal prosecution. Both establishment and enforcement depend on power and the willingness to use force. If you accept 'might makes right' as the ultimate basis of morality, then social contract theories make perfect sense. I do not believe any moral system worthy of the name can have power and force as its foundation.