The aim/meaning of life is to make more of it before we die. Simple as that.
We've just acquired this strange notion that we're superior to creatures like the crane fly because we have thumbs and MTV.
I don't know if superior is the right word. Regardless though, mankind is not governed by laws or herd instincts like animals. Our herd instinct or that impulse does not govern us like it does with animals, so yes, I would say we "superior"