He never played behind really good teams. He played on teams that overachieved largely because of HIM. The Rangers always had the same problem - not good enough down the middle. Check all of the Stanley Cup winners since Henrik was in the league and all of them were better down the center than the Rangers ever were - Crosby, Malkin, Toews, Kopitar, etc...
I have no doubt that the Rangers tried to field the best teams that they could, but they could never get that number one center that every team needs to win.