I can choose not to work in an environment riddled with "scar tissue". Instead, I can go work at a startup and eat that enterprise's lunch with a tenth of the budget. Unfortunately, thanks to inflexible and sanctimonious attitudes some programmers adopt about what is and is not "responsible" engineering, the only way to change practices is to beat the old practices in the marketplace.

You're welcome to try eating Google's lunch, since their process is your favorite example.

But try tackling banking, or insurance, or transportation logistics, or any other big-boy problems with that attitude. You won't last long.