IMO, the play/movie "Doubt" caught the essence of the disparity of the clergy at their full table; meanwhile in the parish convent, sparse meals sans cocktails.
Clergy could have all the booze, cigars, cigarettes, servant served gourmet meals, etc. while the good sisters were not to overindulge their penitential palates.  How many convents before late VII kicked in did the convents have a 'happy hour' or the gals go out for drink? (Some did, however, smuggle booze and butts into the covent inside their burqas).