A corporation can be an empolyer, and you would be able to prove that a corporation hired an illegal worker quite easily, and fine it accordingly. Tracking down the specific beaureaucrat is not needed.
Right. Exactly. You can't send a corporation to prison. You impose a fine. And I'm saying that fines can be imposed faster and more efficiently through administrative action, rather than complex, lengthy criminal prosecution. And that's usually how OSHA violations, banking irregularities etc. are handled. Wells Fargo paid a $190 million fine for extensive fraud perpetrated by thousands of employees. Civil penalties are a quicker way than criminal prosecution to get to the same conclusion.