Without the gnu projects, software would have remained in the domain of universities and industry. Distributing it for free and encapsulating it with an actual legal license was radical in and of itself, but the notion of being required to distribute source was even more radical. Without that, people don't learn to code outside of industry, people don't share ideas and software remains in corporate silos with no/low interoptability unless a business decides to form a strategic partnership.

> outside of industry, people don't share ideas and software remains in corporate silos with no/low interoptability unless a business decides to form a strategic partnership.

Computer science and computing was taught and done at universities long before Stallman and GNU came along. I was using C++ Release E at college before GNU started, provided by Bell Labs at no cost.