I don't think it's a coincidence. A lot of the value comes from things being open and free, which enables rapid proliferation and ubiquity of the technology, but also drastically increases the complexity of making money out of it.

It's one reason I'm really not a fan of the Silicon Valley model .... pick out the top 10 most important technology advances in the last 20 years and about half of them were uncommercialisable in the Silicon Valley sense.