Share 'Ravenclaw House Cup'

We have seen throughout the books that house points are mostly awarded on the basis of correct answers in class, and we know that Ravenclaw is the house that is known for intelligence. Why doesn't Ravenclaw win the House Cup more often? Is it because Professor Dumbledore, as a Gryffindor, considered actual actions and bravery more important than books and knowledge and intelligence? The only answ…