Take the laws of physics for example. Wouldn't the universe be in utter chaos if there weren't any rules to regulate it? What keeps our dear planet from veering off course into the heart of our lustrious sun. Now reflect that on human society. The only difference is that we, of all creatures in the world, have to make the choice to follow the laws that God offers us. We don't have to, and that is the basis of accountability that only human beings are burdened with.