It adds accountability, which is unfortunately something that ends up lacking in practice.

If you write bad code that creates a bug, I expect you to own it when possible. If you can't and the root cause is bad code, then we probably need to have a chat about that.

Of course the goal isn't to be a jerk. Lots of normal bugs make it through in reality. But if the root cause is true negligence, then there's a problem there.

AI makes negligence much easier to achieve.