Humanity as a whole is Inherently bad, and will in all likelihood be its own downfall. Take away civilization and pit 2 people against each other for a chicken drumstick, someone who has no qualms about killing and someone who would think twice about it, evil wins.
That being said, why be ashamed of it? Sure we all say that murder is bad, rape is bad, genocide is bad, but when it happens to someone we dont know we dont care enough to do anything about it. We can discuss something depressing like this till we are blue in the face but in the end it changes nothing. People are still gonna kill, rape, and slaughter other elasticities, but life as a whole will go on. And when that giant nuke or asteroid destroys earth, the only thing that will be remembered is our cruelty to each other.