Joseph: For a frum woman to not have an “outside” job she has to have tremendous economic resources (inherited wealth, a rich husband which probably indicates he isn’t a Ben Torah since one doesn’t get rich by sitting and learning, etc.). The choice is between doing semi-skilled work in a store or office, or being an underpaid functionary in a frum non-profit, or being a lawyer.
Also note that “best of frum women who work outside the home” is compared to “best of frum men” (who by definition don’t go into professions, leaving the money-making to the second raters) and “best of other types of women” (who have tremendous problems finding child care since in their communities few women they would associate with are stay-at-home mothers).