Earlier quoted context omitted.
NASA and SpaceX aren't competitors. NASA's mission statement is "explore the unknown in air and space, innovate for the benefit of humanity, and inspire the world through discovery". SpaceX is a p̶u̶b̶l̶i̶c̶l̶y̶ ̶t̶r̶a̶d̶e̶d̶ privately held company whose mission is to increase shareholder value.
SpaceX’s mission is very explicitly not shareholder aligned, which is why Musk explicitly said he would never take it public or sell his majority stake. The mission is mars and the money making endeavors (starlink) are to bring in the cash to do that.
It's hard to believe that by now Musk still hasn't realized what a ridiculous idea this is.
That realization could explain his weird pivot into e.g. buying Twitter and far-right politics. A midlife crisis triggered by discovering that his childhood dream was just a fantasy.