I think the real question from TFA is if we all do pointless crap like market analysis, marketing, branding, and search engine optimization like the guy in the article, are we going to someday have a future where these skills can no longer be converted into food and shelter through the magic of the market.
For a while now, I've been wondering what the purpose of the USA economy is.
There are the basics, of course. I work so that I can have food, water, clothing, shelter, free time, fun. But it is through the magic of the world economy that I get those things by writing software specifications and unit tests. The economy somehow figures out how many lines of code I need to write to buy a loaf of bread or a gallon of milk.
I suppose I don't worry too much about the fact that most of the work we do is of dubious importantance, so long as it is still convertible into food and shelter. But there is a tipping point somewhere. If everyone in the USA worked making click-through ads, we'd reach a point where no amount of work could be converted to food and shelter.