As we all know, Google has great power. It's power that comes from the masses: utilizing and channeling the activities, ideas and opinions of millions via the Web. All that information and trust capital can be a powerful tool for sustaining an environment that encourages democracy. Or not.
Apparently now, for some at Google, democracy is available to the highest bidder.
But the more important point, since I doubt that too many people care about my personal opinion, is that advertising is an effective medium for handling challenges that a company or industry might have. You could even argue that it's especially appropriate for a public policy issue like healthcare. Whether the healthcare industry wants to rebut charges in Mr. Moore's movie, or whether Mr. Moore wants to challenge the healthcare industry, advertising is a very democratic and effective way to participate in a public dialogue.
That is Google's opinion....