The tone of some of Miss Crawford's expressions reminds me of JA as omniscient narrator.

There's a lot in common between "...to use a vulgar phrase, that she has got her pennyworth for her penny. ..." (MP ch40) and ...to use a most intelligible phrase, been so very ready to have him, ... (Emma ch22, regarding the Eltons).

There's also a lot in common between some old woman at Thornton Lacey to be converted (MP ch40) and Catherine, having occasion for some indispensable yard of ribbon which must be bought without a moment's delay (NA ch14). I realise that Catherine's finery is a different thing from the Edmund's clerical role, but in both cases a commentator is mocking their excessive diligence -- excessive according to the commentator, that is.