[Someone else here is covering the camera in the journal, though not because he would hide from you, Katara. But because he wants to be sure someone else doesn't have the ability to recognize his handwriting at this time.]

As others have stated, power itself is a tool that can be used to hurt or to protect. And it is also very possible for someone to have good reasons, but use methods that hurt many to accomplish their goals.

In the end, right or wrong is determined by others after we act.