If you compare the salaries of the U of O professors and the U of O administrative staff  at the same time you compare the tuition and fees being paid, I think the answer may become clearer.  I also believe that the number of administrators per student needs to be compared in the same fashion.   

The data exists; the desire to make those comparisons is minimal in a town where the U of O is the 2nd ranked employer and where the political impact of its staff is what it is.