At least, human agents can take responsibility for their actions, and they learn. When they fail to do so, they get fired.

You’re right, it’s not only that the subordinate is an idiot. It’s also a pathological liar that never learns and can’t take the blame for their fuckups.

If a subordinate persistently sneaks in bad code despite being told not to, this is grounds for dismissal as far as I’m concerned.