I am now in the finance world. I get more and more exposure each day of the machine that Mr. Tankersley describes in the article above. So, knowing this, I have a quibble with this article. It is extremely narrow-minded. To measure the impact of finance solely by it's contribution to the economy is myopic. Such an analysis negates all the externalities that occur given the growing investments in finance.

The metaphor used in the article, that finance is like a plumbing system enabling capital to move from those that have to those that need, is directly akin to how many describe the internet. The exorbitant growth of the finance system in recent decades has led to new technology discoveries and an emerging talent pool - assets that are rapidly transferring to other industries.
Take data intelligence, for example. Over the last decade, we have seen hyper growth in the amount of structured data, given the growth of the web and other advancements. Vast datasets are becoming accessible for analysis in numerous industries, from commerce to education to even government. Many of the technologies to handle these vast datasets are rooted in finance, as are many of the early people, transferring their knowledge and experience. And growing the economy...