Hi,
I'll try my best at explaining from my understanding!
I think you're conflating "popularity" with "pervasive."
P1: Political Utility --> determines POPULARITY
P2: "Society as governed by head" is PERVASIVE
Just because something is perva…
I believe you would negate the "too." I normally try to find the main verb in the sentence, which is "is" in your example, and the negate the main verb. (Someone correct me if I'm wrong?). So the negated of both of your examples would be:
Head inj…