People are complex beings. If you want someone to change their behaviour, you can’t just use simple coercion — you need a more sophisticated ‘carrot-and-stick’ approach. With the stick, you beat them viciously to a bloody open-minded pulp. I’m not sure what you do with the carrot, I guess you can snack on it to keep your energy up, or you can shove it up their butt. Anyway, social change is a very subtle, nuanced process.