Of course there's jobs that don't have a productivity boost from AI. The question is whether across the entire economy there will be a 5% GDP boost.
Teachers, cleaners, and daycare workers may see 0% gains, but don't be surprised if that is made up for by 10% gains the productivity of tech, law, marketing, advertising, manufacturing, government, etc. (okay maybe not government).
How can advertising and marketing become more profitable from this? It's a genuine question, but I don't see how making advertising and marketing easier for everybody and hence flooding the already flooded market would result in increased productivity.
By significantly reducing the cost of creating the advertisements. Want to air a commercial? You no longer have to have actors, sets, designers, costumes, etc. just ask AI to make you a commercial and describe what you want it to look like.
Consider all the labor and capital spent across all the advertising real estate in the world. Commercial, online ads, billboards, labeling. The inputs to make all these things are now greatly reduced. To increase productivity, it doesn't matter that the market is flooded, just that it's much easier to make these things.
Teachers, cleaners, and daycare workers may see 0% gains, but don't be surprised if that is made up for by 10% gains the productivity of tech, law, marketing, advertising, manufacturing, government, etc. (okay maybe not government).