One aspect is that SpaceX actually succeeded in getting to space (orbit is what counts for the purposes of doing something useful in space or going any further

One aspect is that SpaceX actually succeeded in getting to space (orbit is what counts for the purposes of doing something useful in space or going any further in space, suborbital hops for tourists might technically check the box but is a dead-end) and Virgin Galactic and Blue Origin did not, despite starting earlier, making them at least in part actual "wannabe's" who have the desire to do what SpaceX does, but are not able to (at least for now).