I don't know if 'nature' 'needs' us to take dominion, but I do know we were given dominion.
Might also mention that rape is not sexually impelled but is usually an expression of anger and violence. With so few conceptions as a result of rape, it might also be argued that that behavior should have disappeared by now...
And if there is no true good or evil, where did those concepts come from? I can see "advantageous" and "disadvantageous" or "helpful" and "hurtful" etc.
But 'good' and 'evil'? Where did those come from? They are NOT synonyms for the words in the above paragraph....