The problem is a lot of the R&D is focused on a very esoteric end itself. Sure, some of that technology ends up back at the parent companies and makes its way to consumer tech, but most of it just solves the problems of the moment to win races. They do push the envelope for material sciences more than anything else, but a lot of the engine design and other such things are wildly inapplicable to consumer tech and never will be. They can build million dollar engines out of rare and exotic materials that will never be consumer facing because they need 12 of them or whatever.