alt Hacker NewsIt's The Mythical Man Month idea. Programming software is a different thing than working on an assembly line, or a call center, or in retail sales. You're much better off having four programmers who are worth paying $200k a year than ten programmers who are worth paying $75k a year.
I'm going to argue that, at scale, process beats the quality of the people you're using -- and also that there are toxic cultures, around Google and C++, where very smart people get seduced into spending all their time and effort fighting complexity, battling 45 minute builds, etc.