A professor in college suggested to me that if good people don't work for defense companies, then only bad people will be working in defense companies.
I can understand if (a) didn't interest you but being ex-NSA might help with positions doing (b). Not sure how INFOSEC people would react given the climate, though. Wise ones should see a skill and character reference from getting and quiting the job respectively.
But the commandeered private industry was what the current MIC grew from. It wouldn't have happened without WWII.
In fact, we'd probably get a better deal if there were less so. The amount of money wasted on politically-supported but infeasible/impractical systems is mind boggling.
But no bad people are working on it either.