Originally Posted by Dave Brockman
Simple. Lewis was being held up by a team mate who would only go on to finish 5th. Heikki knew that if he let Lewis go, the Englishman had a chance to hunt down the guys in front and gain more points for both himself and the team. Hamilton went on to win the race, while Heikki's P5 was evidence that he didn't have the pace of his team mate.
After the race there was no protest, and no investigation. Other teams, and the stewards, did not believe there was a case to answer. There was no evidence ever put forward that it was anything other than Heikki's decision.
When Massa let Alonso past they were 1st and 2nd. They literally could not improve on this, so any suggestion that it was for the good of the team is a smokescreen by Luca di Montezemolo. If they'd even been 2nd and 3rd, and Alonso could have been freed up to fight for the win, I'd have no problem with their move.