I am not arguing 7545 is better than 8110, far from it, but you should really learn to count. Federer has played no more tournaments than Djokovic, they are both on 12. If you disagree, please humor me by listing the 14 tournaments in which you believe Federer has achieved ranking points this year.
I says on the ATP website. But I just chacked, and Fed has 13 (Doha, AO, Dubai, Davic Cup, RG, SW19, OGs, Rotterdam, Halle, IW, Miami, Madrid and Rome) and Novak has 11 (AO, RG, SW19, IW, Miami, MC, Madrid, Rome, Toronto, OGs and Dubai). Even not counting Feds Davis Cup, he still played 1 more tournament than Novak. And then some Fed fans say Novak is vulturing but the weakest tournament he played was the strongest 500 of the season.