edit: Lately I started thinking that maybe it's all culture in the end, and things like having a constitution or a parlamentary system vs something else means very little once culture is fixed. Perhaps there are (culture-specific) society traps to avoid, but aside from that there is probably a lot of robustness to organization type.

Note that feeling bound by laws, and in particular constitutions / the will of Parliament / etc., is itself a cultural thing. I get the sense the arrow pointing from culture to institutions is very big and the arrow pointing back is fairly small.