It's called paying for goods and services. You know, basic capitalism.

I think one thing to understand about advertising is that it fundamentally breaks the way capitalists say capitalism works. If you really want capitalism to be about competition to create the best quality at the lowest cost, then you can't have advertising. Advertising inherently drives up cost because it costs, and it allows lower-quality, higher-ost products to outcompete higher-quality, lower-cost products if they are better advertised.

And before some advertiser comes along and says, "But how will we find out about goods and services!?" Search engines. Independent reviewers. Word out mouth. Experts. These are solved problems.

And more to the point, advertising is literally the worst way to find out about goods and services. Mostly, advertising is simply lies, and when it's telling the truth it's not telling you the whole truth. If you're concerned about people being able to find out about goods and services with any accuracy, then you should be against advertising. Ads aren't information, they're misinformation which prevents consumers from making accurately informed decisions.