Comment by ellius

You'll find that even in the hard sciences, which are more objective many times over than the social sciences. Any complex field is going to generate controversy. That doesn't mean it isn't worth learning about.

That said, you should know why you're studying finance if you're going to spend the time on it. For me intellectual curiosity is a good enough motivator. It also helps me evaluate claims made by, for example, public officials. But I think it is reasonable to question whether it will significantly improve your personal financial situation.