The problem with a popular art form is that those who want something more are in a hopeless minority compared with the millions who are always seeing it for the first time, or for the reassurance and gratification of seeing the conventions fulfilled again.
We are not supposed to all be the same, feel the same, think the same, and believe the same. The key to continued expansion of our Universe lies in diversity, not in conformity and coercion. Conventionality is the death of creation.