Where is it written that the whole point of amateurism is to level the playing field? The primary point of amateurism is the notion that youre playing as a representative of something rather than as a professional for personal gain. For example: the U.S. in the Olympics, or for a University, or your church softball team. Youre doing it AT WILL for your own fulfillment.
Too many look at college sports as something that exists in a vacuum. The players are not just talent, they are students. The rules should be set up to best serve first that idea and secondly the idea of their athletic career.
As long as the same rules have to serve a football player at Alabama AND a volleyball player at Appalachian State, they have to be student first focused. Bouncing around from school to school hardly does that.