Re: theological question: what are the other 'gods' that are talked about in the Bible?
Sometimes they are just too evil. If you have seen a deliverance session once, you would see how glad they are about the suffering they bring to people. They hate humans in a way that is difficult to understand...I mean, even evil humans need a break, but demons seem to work 24/7. They hate and envy us because they know they can't be redeemed as we can.
But since they are very hierarchical, I guess they would have their butts kicked by their chiefs if they don't work very hard with their evil actions.
A good book with deep study of those evil spirits is:
"Angels, Satan and Demons" by Robert Lightner.
A more practical one would be "Prepare for War" from Rebecca Brown.