Originally Posted by
Honest Tiefling
Could be complete pacifists that refuse to take a life, no matter what the person has done. While there is some weight that reformation is a viable method of dealing with criminals in our world, we don't tend to have people devoted to evil and human sacrifice, either. Taking care and guarding these people will also take a lot of resources that our modern world has, but this one might not.
They could also choose to be completely ignorant of evil, and therefore don't know what to do when confronted with undeath. They might not even be able to comprehend that others would wish to do evil and be incredibly gullible as a culture or in their body of law. They might not have protocols in place to confront sneak attacks, sabotage or betrayal. Maybe it isn't a choice, since their continent is so goodly, its hard to protect against something you haven't seen in a few centuries.