Einstein completely transformed physics with some stand-out papers - most written as a patent clerk - and then spent the rest of his career producing almost nothing of interest. He commented on other work at conferences and in letters, but there were no more huge breakthroughs.
In modern academia that would be a terrible record.
But giving him tenure was a smart bet, because he might have produced more.
It's the Sabine Hossenfelder problem. Should physics fund incremental research which is a fairly safe bet in employment terms? Or should the money go on talented and creative researchers who may waste most of it - but one or two may produce something transformative?
Academia is heavily slanted towards the former approach. Because academia is now a business and has the same bureaucratic and corporate values as other bureaucratic corporations.
This is terrible for original research, because smart people need to given a free hand to follow their intuitions and interests.
Being able to afford to explore, play, and potentially fail would transform physics.
Because in reality academia is producing a lot of failure anyway, without the upsides of transformative new insights.