SpaceX looks to me like a software startup, that can clue a cheap, working hack from existing products. But Boing is a mega corp like Microsoft, Google, Intel that can create revolutionary new products from the ground up.
In 12 years SpaceX roughly managed to build two rockets and one space freighter cheaply - economical "first", to produce stages with e.g. high (comparing to industry standard) dry-to-wet-mass ratio, to produce a kerosene engine with, again, pretty high thrust-to-weight - and run a development program on vertical landing for the first stage.
Don't see anything comparable to that from Boeing.