Ok , so what happens if Nole Defends Wimbledon by beating Roger in the Final ?
Nole stays the same and Roger GAINS 840 Points
What happens if Nole Defends the US open and Beats Roger in the Final ?
Nole gains nothing and Roger gains 480 points
So yeah , what were you saying about how the rankings work ?
For these scenarios to occur, Nadal would have had to lose earlier than the SF, or lose to Federer.
You are only considering the points themselves, and not the road TO the points
EDIT: I was assuming Fed was No. 3 in these scenarios. If he were No. 2, that would mean that he would have outdone Nadal during the clay season, which I don't see happening either.
As of now, Fed's not playing Monte Carlo (and will lose however many points a QF appearance is) and Nadal will likely at LEAST make the finals. He'd still be behind Nadal.