And no pirate who's in his or her right mind (or who's met Captain Teague) would go against the Code...

Elizabeth looks pleased with his answer. "Indeed.

"Until tonight, then? I paid a boy to watch the ship and alert me if anyone disobeys orders and makes ready to sail. I think I'll pay him the rest of his due and begin preparations in earnest."

It's possible she learned from Jack and Gibbs' misfortune.