Noam Chomsky said this quote

In fact quite generally, commercial advertising is fundamentally an effort to undermine markets. We should recognize that. If you’ve taken an economics course, you know that markets are supposed to be based on informed consumers making rational choices. You take a look at the first ad you see on television and ask yourself … is that it’s purpose? No it’s not. It’s to create uninformed consumers making irrational choices. And these same institutions run political campaigns. It’s pretty much the same: you have to undermine democracy by trying to get uninformed people to make irrational choices.