Comparing a politician who is currently in office to a civilian is unfair. If a newspaper decided not to publish a speech by the leader of Iran because "wiping Israel off the map" is racist; it would be doing its readers a disservice.
Quite obviously Google feels their profiling of users from other sources is good enough that they can afford to throw them a bone - not to mention save themselves a bit of effort since they will no longer need to maintain two systems for GMail.