Most of what you mentioned is research & development, not building. I don't know why you say we're killing it at EVs, when there's many competitors, and Tesla churned out dreck for years until it finally produced a decent car without defects, and had to be floated constantly on US government subsidies. SpaceX is the only thing that seems to work reliably, probably due to sheer will from passionate engineers and a ton of QA (and a whole lot of NASA experience).

Anyone can come up with a new sandwich, given enough time and money. Not everyone can churn out 1 million sandwiches, quickly, perfectly, every time. That's what building is about.