You may have delivered value in peer review, but on the whole, peer review delivers negative value. https://www.experimental-history.com/p/the-rise-and-fall-of-...

The arXiv vs journal debate seems a lot like 'should the work get done, or should the work get certified' that you see all over 'institutions', and if the certification does not actually catch frauds or errors, it's not making the foundations stronger, which is usually the only justification for the latter side.