That question is addressed in the article:

"Their line is that advertising is trying to expose the public to new and exciting things to buy, and their task is to simply provide information, and in that way they raise human well-being. But the alternative argument, which goes back to Thorstein Veblen and others, is that exposing people to a lot of advertising raises their aspirations—and makes them feel that their own lives, achievements, belongings, and experiences are inadequate. This study supports the negative view, not the positive one."