Since we know what is superior and what is inferior, we have the basis for determining what is right and wrong. The higher up on the hierarchy you are, the more authority you have over the things that are below you and the more rights and privileges you can claim for yourself. Herbivores can demand the lives of plants for their food. Carnivores can take the lives of herbivores. Humanity can kill both. And the gods can demand whatever sacrifices they want from humans.
