According to Agnes, Agatha has been her bodyguard for more than a week and during that time Agatha knew about her good and bad qualities. And all she has to remember outside her head is, Agnes hates her peace of mind to be disturbed! And yeah, the woman who got Mrs. Jazzton's title is very easily provoked if her orders are not carried out. Ah, don't! The nature of the temperament was only for Agatha one.
Over the course of the week most of her duties were always carried out by Jack, and Agatha only got a small portion of her duties. It was by order of Jovin, because Agnes was reluctant to give orders to him. Even looking at her is very rare, and Agatha feels that she is like an invisible creature, better known as a ghost.