I think you misunderstand the context of the article. It's not "here's interesting information about wealth vs. happiness". It's "remember that theory about we

I think you misunderstand the context of the article. It's not "here's interesting information about wealth vs. happiness". It's "remember that theory about wealth and happiness that is generally accepted as true by everyone? Well, guess what, it's wrong". Which is a lot more interesting/important than the other questions the article raises, although they are of course also important.