Without commenting on the actual story, human morality isn't a single switch (or even dial) with evil on one side and good on the other — it is entirely possible to be a demon in one aspect and at the same time an angel in another.

For example: Washington bought slave's teeth, with circumstantial evidence those teeth ended up in his mouth. By the time he died, he was against slavery but didn't seem to know how to approach the abolition of the practice.

People are complicated.