All Hindu gods killed evil creatures and became heroic images. This is the only religion in the world where the Destroyer becomes god. Whom did they kill? From Brahma to Krishna, those who were killed were evil to the society thus restoring peace.
The human soul is on its journey from the law to love, from discipline to liberation, from the moral plane to the spiritual. Buddha preached the discipline of self-restraint and moral life; it is a complete acceptance of law. But this bondage of law cannot be an end by itself; by mastering it thoroughly we acquire the means of getting beyond it. It is going back to Brahma, to the infinite love, which is manifesting itself through the finite forms of law.