I don't understand the comparison in reference to the question of 'Why Does DARPA Work?' or my comment.

Military-Industrial Complex is where defense industry profit motives drive unwarranted political influence that shapes defense policy, foreign policy. Military-Industrial Complex drives defense spending up.

Trust is about the erosion of market competition, which results in decrease product value-price ratio. In the context of defense product, it means that the products that the consumer (here military/govt) can buy from the market become increasingly expensive and weak. Which creates an opportunity for consumers to do-it-better-yourself-and-for-less, which to me, explains DARPA.