> Fixing things in the project management process is a hugely levered activity.

Respectfully, you're absolutely right, but at many many employers dev's opinions on project management doesn't matter and is totally ignored. That's why I say don't worry about it. The devs I've been around that get upset and dogmatic about project management principles just get burnt out faster because employers don't care/won't change. "Don't care" didn't mean "Don't know about", but moreso "Don't get worked up about" or "Don't be strongly opinionated". Of all the hills that exist in software to die on, project management is pretty much the worst one.