"Your highest‐order contribution and responsibility as #ProductManager is to make sure that what the engineers are asked to build will be worth building. That it will deliver the necessary results." https://learning.oreilly.com/library/view/-/9781119691297/c14.xhtml#:-:text=Your%20highest%E2%80%90order%20contri,er%20the%20necessary%20results.

Granted, I'd consider that also the highest-order responsibility of engineers.