Man is part of Nature and Nature has no such requirement.
I agree, but sadly that is not the way that all see it. Some see humans as above nature and somehow very special. Maybe we are because we are very inventive, We invented mechanical and electronic devices, social systems to control the masses, gods to control the masses, methods to heal, methods to destroy on a mass scale, a way to produce a mass extinction attributed to a single species and so on. Are we special? In a way yes. Are we superior? Ask the numerous species that have gone extinct very quickly on our account? Look at what we have done to the environment.
