"Madam and the Rent Man" Questions

ANOTHER POST OF AWESOMENESSSSS!!!!!!!!!!!!!!!! XD

1) She was being sarcastic about how they both "agreed that they were unpleased.
2) I think the messages they give us are - Respect the poor
                                                            - Everyone are equal
                                                            - Don't break your promise
3) It shows that the scene really did occur in New York. I personally think that the author purposely use it to show that neither the rent man and the madam take each other seriously. It also shows how mad the madam is.