To me, that is the biggest difference between SF and CS. Neal isn’t looking to get a kiss out of helping Charming like Hook did. Neal’s just doing it because it’s the right thing to do. That’s what real nobility is.
Surely it can’t be accidental that they’ve now had both Hook and Neal being involved with saving Charming’s life, and one did it in large part so he’d benefit from it personally, while the other very clearly stated that you don’t save someone’s life because there’s personal benefit to you, you just do it because it’s the right thing to do. I just went to re-watch that scene, and when Neal says, “no deals, no favours,” Emma actually looks right at Hook. The contrast between each guy’s motivations had to have been intentional, because it’s so stark.