Oh I'd say it very strongly implied that:
"..the second rule of moral psychology is that morality is not just about how we treat each other (as most liberals think); it is also about binding groups together, supporting essential institutions, and living in a sanctified and noble way. When Republicans say that Democrats "just don't get it," this is the "it" to which they refer."
If one equates "liberals" with Democrats (not such a stretch) and takes Dems to be opposite of Republicans (ditto), then it is saying that Republicans' rule of moral psychology is to live in a sanctified and noble way. So either they do... or they are hypocrites.