I don’t. I’m talking about he lasting impact the presence of Ryuma left onto the world : which is that no one dares to approach Wano, the land of gold, even years after his death. Imagine how impactful Ryuma have been if the Celestial Dragon who got everything their want renounce to take Wano. Wano was violated while the Kozuki was in charge.
1/ The Kozuki did not create the poneglyphs, they just know how to write one them which was common knowledge in Wano during Ryuma time
2/We don’t know who was the ruling family during Ryuma’s era furthermore the argument is asinine because that would mean that Walpol had more importance than Kureha, that the king of Luvneel had more importance than Norland, that Neptune have more importance than Jinbe