@Ponn personally I see Olivia being someone who goes with the flow of the Ministry so long as they placate her but I imagine she’d be conflicted greatly if she was asked to use her Darling to reign in any errant Magical Girls.
This is, of course, assuming the Ministry is the sort to do that. Camelot is currently only paranoid about them, for example. She doesn't really have any proof of wrongdoing, just unease with the current way they seem to go about things and the unchecked power they apparently possess. That aside, Olivia probably wouldn't be super thrilled about that scenario if it did come about...