Career moms in my observation often don't really bond with their babies. I suspect they have a lower level of maternal hormones circulating in their systems -- whether because of career distractions, divided loyalties, or simply separation (infant placed in daycare).
We had an assistant county prosecutor here in NJ leave her infant unattended in a car for hours recently. Same excuse -- she "forgot" to take the baby to daycare. Fortunately the day was on the cool side, and the baby lived.
bad things can happen to good people.....even perfect people....