Light's heal do damage to darks.
I mean...
The whole Idea of Good Means We're all at peace and freindly towards one another
THat we don't need to be evil because we feel good being good
And its all the concept of
Good
Feel Good
Powerful
When we choose evil we are under the fear of justice which does good to allies and harm to enemies...
-THough not as strong as evil itself... its still something that we don't want to have happen... to be hurt...
Evil itself is all about hurting one another
Survival is about Hurting another person to stay alive
Good doesn't hurt evil, Evil hurts evil, Justice Hurts evil, Survival hurts evil (But as you probably have seen from the Police, Justice isn't always the best choice since sometimes we hurt people through justice that are just trying to survive or it doesn't have enough effect on evil and it corrupts the system)
Either way....
Good doesn't mean harm
Wisdom Means you may have to harm a few people to make sure people understand what we should go for... because apparently logic isn't enough...
But... yeah....