But that’s my entire point. Taking your example, the bulk of robotics companies aren’t all applied scientists (for that matter in spacex, nasa, etc.). You will have a very small cohort that does the r&d and the rest of the folks executing on that.

The r&d space is really interesting but very selective for obvious reasons. Just a PhD won’t get you in. You will need significant other contributions - eg the right publications in high impact journals, possibly internship with the companies themselves, the right advisor/PI that collaborates with the company, etc.

The team I'm on is half PhDs. We aren't doing fundamental research, we are building a real product. We prefer to hire PhDs as applied scientists (which we distinguish from research scientist) because they are better able to apply and build new-ish ideas from academia. But most of what we do is not novel in the publishable sense. The PhDs I work with are certainly all smart, but aren't the top echelon you are describing.