This is completely true until software eats their industry up as it almost invariably does. Just in the examples provided by the author, insurance is undergoing a shift to direct-to-consumer, and I firmly believe that mobile apps are going to become super important differentiators in that industry. Real estate takes longer to take the sledgehammer to because of entrenched agents' smart use of regulation as a moat, but it's clearly coming next.

Put another way, a company's organization can be seen as its software, except it's running on a kind of wet, carbon-based hardware that does certain things much better than the silicon-based ones, and other things much worse. As the capabilities of the silicon-based computer increase relative to the capabilities of the carbon-based, there are few industries where it would be wise to continue purchasing software like one purchases pencils.