> Sure, but how much of the total work time in software development is writing relatively straightforward, boilerplate type code that could reasonably be copied from the top answer from stackoverflow with variable names changed?

It may be a significant chunk of the butt-in-seat-time under our archaic 40hour/week paradigm, but it's not a significant chunk of the programmer's actual mental effort. You're not going to be able to get people to work 5x more intensely by automating the boring stuff, that was never the limiting factor.