It is just one persons take. I would take it with a grain of salt. Arpa wanted a mobile network that would be operational in all countries prior to invasion. At it's inception, the internet was everything SRI ever meant it to be. Everything the internet has become is just a side effect of what was created. It follows the principal of "a person will do what a person can do".

It is the same as the DoD making interstate highways to allow troops to move across the country quickly. Everything else that sprung up along those routes was just a byproduct of the interstate highways. The good, the bad and everything in between.