[amateurpolymath]

> I hope to see a change in the reward structure and system of values at research-oriented universities so that teaching and expository writing become legitimate as a specialty.

This is a problem in many fields. Teaching and exposition are often seen as low-value distractions from research, the type of work better left to "lesser" scholars (graduate students, non-tenure track faculty). Many mediocre researchers would be stellar teachers but you are more respected (and better paid) for research.