The real story is that he's anti-anti-competition. His competitors in particular already have deep ties with the government and its various departments. Companies like Boeing, Lockheed, etc. have engaged in deep regulatory capture to prevent competition from emerging.
These already established corporations have a revolving door with the government and that's the real impediment. That's what he's against.
So while you're right about his self interests, I think it's important to clarify that the decades long entrenchment of these various incumbent corporations is why this is all happening in the first place.
That's the real reason.
Unless you just mean we could do exactly the same things, but more efficiently. But that is not what is meant; it means stopping doing a lot of things.
Very efficient