While I agree in concept overall, I do think Peter makes a good point.
In football, offenses will almost always attack the other teams weakest part of thier defense, whether that be running or passing game, or throwing away from the best DBs side of the field. In the NBA, they do similar by going after the weakest players on defense, or by double or triple teaming the best offensive player and making lesser players make the big shots.
Yes, the best players all want to win championships, and to do that you usually have to go thru the best of the best, but it doesn't mean they aren't going to exploit the weaknesses of even the best teams and "avoid" the best players when they can in game.