if you like, the business model is called Innovation-as-a-Service :)

That's perfectly aligned with capitalistic motivations

that's only partially true.

AI can innovate in synthetic-realm of novel ideas, while real-world novelty will remain untouched.

There are different types of novelties

before you had a lesson that every engineer has to start with writing C, yet most of modern devs never did.

Seniors should be prepared that Seniority will mean different thing and path of getting there will be different too.

Just like there was a shift from lower lvl languages to high level

fwiw 90% of software is reinventing the wheel. 80% of devs have an itch to "rewrite from scratch".

AI will deduplicate all of this

In my view, you are very lucky you can ask this question. It means you don't have external stimulation big enough to not have time to think about these matters. I don't want to be silly, but if you'd be hungry, jobless or having a lot of stake at risk, your brain would imidiately switch to "get shit done". So much for external motivation. Internal motivation, thats another story, which everyone need to figure out themselves. Still struggling myself.