Advertisements against commercialism?

What do you make of advertisements that mock or criticize commercialism?

For example, there's a funny REI print ad in magazines recently, picturing a couple whose tent is pitched in front of a gorgeous mountain panorama. The sarcastic text recounts the supposed virtues of the plasma screen TV owned by the couple's friend. It's almost like you're there, the friend says of the TV.

Or consider this advertisement from Dove, mentioned by the adrants blog. The link was accompanied by this striking reflection addressed to the author's fellow marketing professionals:

After watching Dove's new Ogilvy-created commercial, Onslaught, a follow up to Evolution, you might become a bit sickened you work in an industry that forces impossible ideals down the throats of innocent children. Now if you think that's overstating things a bit, just watch the new commercial. You know it's true.

The tag line is "Talk to your daughter before the beauty industry does."