The movie doesn't change in any big way. It's not really hard to make a film about self-help gurus. But what can be difficult is making the bad guy seem good. This isn't really so much an effort as it is a method of creating fear in your audience. The poor old man says he can change his life. And we don't want to believe that. We want to feel sorry for him. I've never thought of fear as evil. But fear can be scary.