You might be an honest person.

Someone causes a damage onto you.

You might generously forgive him.

However, he might try to make sure that you won't tell anyone about what has happened by letting you sign an NDA.

Your generosity sometimes doesn't reach the other person's heart.

It's sad.

But it's true.

At the end of the day, finishing him off legally is the most generous way to deal with a conflict.