It doesn't care that showing only pretty people devalues ordinary-looking human beings. It doesn't care that it's teaching children to want things and whine until they get them. It doesn't worry about the consequences of telling us that politicians are just another product to be pushed. There's not a whole lot that America, as a society, can do about this. Our current government is hostile to the notion of publicly funded broadcasting, and public TV doesn't compete all that well against the commercial networks in any case.
Commercials are our past, our present, and our future.
We can turn the damn things off. It may be that God gave us the remote control for a good reason. We can refuse to buy the product. We can tell the advertisers why we will not buy the product. We can tell them that some things are sacred, and if they abuse the sacred they will lose us as customers.