Luffy’s father is actually know all the world and saving countless countries, is deemed most wanted person by the most powerful power in the world (marines).
Meanwhile Zoro’s father is a nameless fodder.
The old guy could’ve at least said he was related to zoro… Like technically this guy is like Zoro’s great uncle right? Zoro doesnt need to be told he is from Wano, he can at least be told he has relatives right there with him
And i think the marine business is because they are pirates… Zoro says that the rumor is that the town was founded by pirates