I always got the impression that GDW leaned politically right or at least libertarian. Was that your sense (you don't have to name specific names)? Steve Jackson Games tends to be somewhat libertarian, too. The left coast game companies, on the other hand, are pretty liberal. You might find this Salon article interesting. I presume your days at GDW were nothing like that!
Gygax is a self-declared libertarian and is actually accessible on a lot of the larger RPG forums.
But I think you're correct, in general. Keep in mind these game design guys were hooked into the military and apparently had friends in military high places. It would NOT have been in their best (business) interests to portray the military in a negative way. And this coming from guys who made it through college in the mid 1970's!