The leakage of structuralism into medieval studies was slow, but once it started the feminists made some interesting strides with it, trying to understand how the culture dramatized its inner dynamics in patterns of tale-relations. We don't appear to have it at JRL, but Towson or JHU would have it. Yes, it's been done lots and lots of times, but the tale won't be contained by them any time soon. It's certainly not hopeless as long as you don't try to force a closure on your argument if the evidence won't support that. Stay in touch if you pursue this.
Rich men entering heaven and camels passing through needles' eyes also come to mind.
So the faith the aristos professed in God was at odds with their social practice. Romance tried to coopt the Church's iconography and interpretive claims of reality's highest values. Note that the gods Emelye channels for are Diana and Saturn. There are Christian romances, especially the Quest del Saint Graal , the Perlesvaus or Percival story, and some others. These seem to be the monks' counter-attack, in which knights who fight for trad.