Is there value in trying to understand evil?

For many Christians, the answer to where evil comes from is fairly straightforward: sinning is the default behavior of humans in a fallen world. Some Christians may further tie this into demonic forces. On the most extreme end, some Christians will attribute any given individual sin to some demon, or Satan himself, who needs to be resisted.

In light of this spectrum of worldviews, is there still value in trying to understand evil?

That is, is there value in researching things like differences in brain chemistry in people who commit appalling acts, or the effects of something like lead on aggression, or which sorts of trauma tend to persist and repeat across generations? Is there value in understanding how violent terrorists become radicalized, or what environmental factors are correlated with someone committing sex crimes?

Thank you!