Andrew -> I really do believe the car is illegal, as discussed in the bendy wing thread. And I think one of the the reasons for the monumental FIA legal cockup of Whiting, the stewards and the FIA rulebook all saying different things could very well be a voluntary decision to try to doctor the results to help build the F1 brand.
And I do think it's for the same reason they spared double world champion Alonso in the Spygate and Crashgate affairs. They felt the brand has been weakened since Schumi's first retirement and were trying to build a new star driver to take his place. And now it's possible (I'm not saying it's certain, I'm saying it's possible) they are doing that with Vettel.