The "social contract" is God's "covenant" with man, just with an Age of Reason makeover.
How exactly do you enforce a contract against God?
And who do you sue to enforce the "social contract"?
In both instances, there is nobody on the other side of the transaction who can be held accountable for failing to perform their obligations.
So, what is the point of these "contracts"? To control the behavior of those who believe in them.
And who benefits? Look to the philosophers who developed the social contract theory. Then look at who they worked for.