At this point The Strawhats are like Rich Fratboys who became successful because of daddy's connections while pretend to be self made men
Sanji actually hates his name and the actual Germa say he is unworthy of it.
Nico's last name isn't worth much. It's more that she survived Ohara. Doesn't matter which scholar necessarily.
Zoro... if he fucking cuts down a major figure in the Beast pirates... that's all him. He trained his ass off, that's all he does. You can thank Luffy's connections, with Kuma sending them where they needed to go, but the whole point is what they made of it amd what they do now.