Her sole rationale was "I'm too important to take time off for this". She probably could have even gotten financial assistance from some charities to offset any lost wages.
It is a life, not a choice.
She lived in NYC. I know a few women who would have made excellent nannies. In fact, she could have sponsored an au pair or guest worker nanny. Baby nurses are in ample supply. All there is to this is that she is a cold hearted bitch.