Thats not true. There was no long view government plan to create what we now call the Internet.
Not that I don't like profit motives. I love them. But if there is a profit motive, you have to really really question why private industry isn't doing it instead.
If your engineering challenge is putting filters on pictures, you're probably going to have less positive spillovers - not that you wouldn't be solving a real problem, but it's a different kind of thing.
Dies any other country have a DARPA equivalent? Or, more specifically, did any other country have a DARPA equivalent 40+ years ago?