To add to what I said before here, upon a re-read of P3V5’s POV chapters I can confirm that Charlotte’s narration strongly implies that emulating Myne is overwhelmingly the reason for her general approach to solving conflict and dealing with others. She especially is struck by how Myne cared for Hasse and how much her retainers and the temple orphans adore her, inferring that this must be what people meant when they told her she must use her subordinates well, and from only then she resolves to be respected and loved like Rozemyne, but we all know that is absolutely not what said teachers would have meant. It is also during the same spring prayer trip that she begins to revere Myne like a goddess:
No longer did I feel any surprise, shock, awe, or envy toward Rozemyne. Those feelings had vanished, and all that remained was the urge to worship her.
Charlotte’s rule expressed in this chapter and others may as well as be WWRD: What Would Rozemyne Do?
Florencia may be a kinder soul than most, but she is still a top-tier noble with the common sense Ferdinand and co. has expressed, and only a mother Charlotte loves, not the object of worship. (Florencia of course already having fallen into similar feelings towards Rozemyne a year earlier following her saving of Wilfried the first time.)