The comment to which I am replying is a great example of that. When the bad outweighs the good, it becomes particularly important to make note of the good when it happens.
It's easy to just roll over and say everything is terrible. That's what happened to the people in this story; nobody was willing to try and do the right thing. Then, someone did. It's important to acknowledge the evil, but it's also important to hold up the good and say "Do this. You can make a difference."
Don't roll over and accept the evil as inevitable. It's not.