I think Alinsky points to his evil intent right off the bat by dedicating his book to Lucifer in the beginning. Even though I don't believe in that stuff, my Spidey Sense always perks up when someone who does believe takes the side of an evil mythical figure. It is the same to me as if someone tells me they like to watch other people suffer. It tells me stay away and watch out for them. They're going to do bad things because they just told you they're going to.