Yeah, that's another thing... Because good developers are rare, expensive, and risky, corporations think they can get the equivalent work output of one good dev

Yeah, that's another thing... Because good developers are rare, expensive, and risky, corporations think they can get the equivalent work output of one good developer by lashing together several average developers the way you can get effectively one large reliable disk by RAIDing together several smaller, less reliable ones. This in and of itself is a strong motivator for how agile is done in corpo shops. Of course, the fact that programmers don't actually work that way is something these corporations' management didn't get the memo on...