If that could have been achieved it would have been very profitable, too. There's no shortage of cheap, motivated interns/3rd world devs and the executive class prefer to rely on disposable resources even when it costs more overall.
The net result was always the opposite though - one or two juniors on a leash could be productive but more than that and it always caused more problems than it solved.
Seeing the same problem with agents. Multi agent orchestration seems like a scam to manufacture demand for tokens.
So to be clear, I'm not advising anyone to change their current token consumption habit. I'm just saying that it's silly to apply math to prove the impossibility of something we can literally see around us. It's like a mathematical proof that water isn't really wet.