It's peculiar. I think the 'educational' mission of RPi flew the coop a long time ago when they found they were selling piles of Linux SBCs at or below a cost that was realistic. Now they're a COTS part used in industry. (Ever buy a $25,000 heat staking machine to discover that they used an Raspberry Pi as the primary control unit? I have.)
Arduino is now going through the same experience, they have a "pro" line where they're trying to compete with existing Linux SBCs in the industrial space like Phytec, Variscite, or Kontron. But they can't match on cost yet.