Agent Cooper
Lynch's Creation
I respectfully disagree - the scenario you describe might make for interesting philosophical debates of good vs evil, their origins and deeper meaning etc.They are complementary. The actual Truth is both beyond good and evil. The evil will force you to look for good and through good you will find the Truth of the Beyond.
So perhapes what we find evil today will not look as such tomorrow. You cant say about animals that they are evil but if you see human behave as one you will be disturbed. So what you actualy witness is progression from lesser to higher truth.
But in the real world I don't see that scenario happening at all. As Rashiminos suggests, in the real world throgh the history of man, evil begets more evil. The history books are the witnesses to this very human trait.