Very rarely do grandmasters let themselves get checkmated. And to a certain extent I totally can understand that; grand masters can see the writing on the wall and they know when they are going to lose. If your opponent is also a grand master, he will probably not blunder and secure the checkmate without issue, so what's the point in going through the motions, right? Perhaps a certain degree of pride is involved as well.
I do not mean to humiliate the grand masters, but I want to see what would happen if we presented an incentive to play until the bitter end; until being checkmated. I would like the community here to comment on my hypothesis: if we added a small rating point boost (or reduce ranking penalty for losing) for playing until the end, would the grandmasters follow the incentive or is it not the case of pride goeth before a fall?
Further Clarifications: Perhaps such a system would not prove to be extremely instructive for chess learners world wide. Some may liken it to shooting fish in a barrel or just wasting time, but who knows, something magical might happen if grandmasters are pushed to their breaking point every game.