Living with God's grace in one's life as the controlling force is much superior socially. Social rules here on earth exist to help people manage relationships when interests conflict. With grace, a person understands that God is taking care of them even when they aren't perfect, and even when they don't get their way when in conflict with others.
So, the rule is God writes the rule on your heart, and shows God's love for you in it's application in all situations.