Well, lets see here. In INES III, the cartoon villain leaders are Queen Victoria, the Kélen Toumani, the Proletarian Emperor, and more recently, Jacques Sangle and El Jefe. The Supreme Leader has his title, but hes not presented in quite as overblown a fashion, Nico Romano has a cultured vibe that makes him a little different from the other ones, and Lord-Protector Gabriel Blacktyde, while that name hints at a lot of stuff, hasnt really been developed as a character yet. Similarly, your Li Dingbang (before he was phased out) implied a joke, but wasnt particularly overexposed.
Meanwhile, France and Israel have interesting multi-sided political situations, and the stories that have come out of Havana, CWOH, Siam, and the UK are much more focused on normal people.
So yeah, theres a trend, but it isnt a blowout.