None of this will happen until there we have an objective metric for determining the tangible value provided by developer.

So, so many devs are great at building interesting tech, refactoring to more interesting tech, and so on, but entirely missing the mark of optimizing actual, upstream value delivery.

I'm sure other industries have their means of demonstrating that this or that practitioner can both deliver and deliver quality. We don't have this at all in the software industry. Furthermore the overly common team processes and team structures in use don't even allow for demonstrating this.