[A hand raises to her chest.]

There are quite a few super powerful being in this town, both good and bad. The problem is, no matter how good or evil a person is, they can make mistakes and decisions that harm people.

In short, there is no one watching out for the others. We rely on those who are 'good' but even they have made bad decisions in the past. There must be people who exist solely as a balancing power so weaker people will not get caught up in the fights of those who are stronger.