Our most precious and valuable helpers are our brain, with which we can think about things, our imagination, with which we can see things through other people's eyes, and our heart, with which we can feel for other people. Using these we can know how we should live, we don't need to obey rules imposed on us from outside.
If you believe that God made us in his image, then you must believe that He gave us these abilities, to use for good - so if we don't use them, we are wasting His gifts.
If you believe that we are a development from a spark of simple life millions of years ago, then you must marvel at how far we have come.