Those drive some of the main contractors (like Aerojet Rocketdyne) but not all those others in that protracted list. Those are selected by the supplier quality process defined by typical civil servants, not Congress.
This was about how that long list of suppliers gets selected, not about how they make money. If you look through my previous posts, you’ll see I acknowledged most of these suppliers aren’t on the list to make a ton of money from NASA, and that a lot of suppliers don’t even attempt to make the list for that very reason.
There’s already enough corruption in govt, we don’t have to make believe it’s in places that’s it’s not.