This kind of process oriented thinking eventually hits a scaling limit. Look at Meta as they struggle to scale their way out of basic problems that builder oriented labs had little trouble with. Zuckerberg bet on open weights but his company doesn't own GLM-5.2.

>If I am trying to sway others, I would say that an org that has only known inefficiency is ill prepared for the inevitable competition and/or belt tightening, but really, it is the more personal pain of seeing a 5% GPU utilization number in production. I am offended by it. — John Carmack’s resignation letter from Meta (December 16, 2022)

It's definitely possible to have a builder culture in a large company, but you need to insulate them from the rest of the org and have protective management. Nobody who happens upon a breakthrough is expecting it, all startups expect a breakthrough (their owners are crazy). Don't create a pattern of "stealing" tech from your employees; "tax" them instead. If this is correct then I'd expect to see breakthroughs out of valve in the next decade or 2.