hiding ranks?

do you think that you should hide your ranks from the people you are playing your games with?
Main reason is during standard games, when down to a few players, sometimes players tend to help the highest ranked player to avoid point losses. One scenario, me, some guy with 2400 points, guy with 800, and 1300, the guy with 2400. There has been a few cases where the guy with 800 points nearly won, and we did everthing we could to stop him. Now suddenly I had the upper hand, and it would take all their combine effort to take me down, but the 2400 guy didn't feel like losing 60 points as oppose to less than 20 if i won, so instead of attempting to work together, helps me win.
Should that be the case? Perhaps hiding your rank from players who you are playing with may solve that problem.
P.S. I didn't particularly look forward to potentially losing 80 points that game while winning a 8 play game on average gives me only 50 points :C
Main reason is during standard games, when down to a few players, sometimes players tend to help the highest ranked player to avoid point losses. One scenario, me, some guy with 2400 points, guy with 800, and 1300, the guy with 2400. There has been a few cases where the guy with 800 points nearly won, and we did everthing we could to stop him. Now suddenly I had the upper hand, and it would take all their combine effort to take me down, but the 2400 guy didn't feel like losing 60 points as oppose to less than 20 if i won, so instead of attempting to work together, helps me win.
Should that be the case? Perhaps hiding your rank from players who you are playing with may solve that problem.
P.S. I didn't particularly look forward to potentially losing 80 points that game while winning a 8 play game on average gives me only 50 points :C