You might enjoy the book "The Entrepreneurial State" by Mariana Mazzucato makes a similar argument that a lot of innovation is actually driven by the state, because they can afford to invest a lot in research without an immediate payoff. The author mentions DARPA in particular as a great example of the US stimulating innovation that then later benefits companies. For example, while the iPhone is a great piece of innovation, it built on innovations made possible by state funded research.