There's always going to be someone who will lead the people to salvation and someone who will lead the people to destruction. In some cases, both methods lead to destruction, it's just a matter of which one will have less of an impact.

[You know, like that one time the Lord of Calamity technically helped save the world when the Shepherd was trying to turn humans into mindless beings. That was fun. It was great. Awesome...

...amazing...

Except it wasn't.]