We had tens of thousands of engineers working for the military industrial complex and then the cold war ended... result? Many of them were out of a job. And guess where many of them lived? California. It was and still is a big defense contractor state. And what did those engineers do? Most of them found jobs in the private sector and to a large extent their technical contribution made the tech explosion in California happen. Suddenly business had access to a glut of engineers.
Not only that, they also had access to all kinds of expertise that was developed using these precious federal dollars. Network communications, microprocessors, software architectures
How many of those talented engineers would've matured to that level if not for the cold war investments? You can certainly argue that government oversight of all this talent was misplaced, but you can't deny that it provided the essential opportunity for that talent to develop.