Based on history and the present and from watching people all my life, I think it is an entirely fictitious illusion to describe humans as a moral species. For one moment, try to imagine yourself a member of any other species and observe humanity's impact on your life, or on humanity for that matter. Morality is entirely subjective and relative. We invent morality, and we can't even live up to the morality we have created for ourselves!
Truly, if we behaved "as animals" we would probably do a lot better and create a lot less chaos in the world than we do from our "superior" position now.