I believe this quote explains the situation well; "It is difficult to get a man to understand something, when his salary depends on his not understanding it."
I think it can be true in some situations. If you think of magazines, it would be a disappointment for Rolling Stone to contain no ads. Same for camera magazines. News content really doesn't benefit, though. Just clickbait stuff.
"But what about things you didn't know you wanted?" I can't want something I don't know about. I can want something I can imagine, in which case I might go searching to see if someone else has made it reality. But I don't need others trying to artificially inflate my demand for goods and services.