Just shows how much of a cost of rocket is wrapped up in graft. If NASA needs $500 million for each rocket launch, but Musk’s entire cost for rockets, several launches, is $500 million for the year, that’s like 80% or better graft under NASA.
Much of it is redevelopment cost. Instead of iterative improvements, older aerospace companies go back to the drawing board, even on the shuttle-derived booster that uses similar SRBs and similar liquid=fueled engines. Oh, and other than possibly the SRBs, isn’t reusable.