Your question doesn't really make sense. Why would they skip one day of plebe summer or plebe year? Did you mean validate plebe summer?
I would say no. While their challenge might not be polishing shoes, knowing certain rates, making racks, etc. their challenge will be as a team player. How well can they help others learn and succeed? That is a test of leadership and they can learn from that too and also be held accountable by the detailers. A good leader will put a lot of effort to help others and this will probably show...to the contrary, poor leadership probably will be noticed in a less desirable fashion.
I would suggest any NAPSTERS adopt this mindset and not the "been there, done that" one because I guarantee that if he/she doesn't, the detailers will eat that kind of person alive.