I'm not the one who brought up Vice Captain, it was the other dude
But good for you to think that, though you're wrong if canonical sources claim Zoro is the one who acts as vice-captain.
Hell, as great as Jinbei is, actively trying to claim he might have more generally understood authority within the crew than Zoro or even Sanji is just disrespectful. Those have been, are and will always be Luffy's right and left hand man respectively. They're the ones who almost always take over command of situations (unless a crew-mate specializes in those situations; medical, navigation, etc) when Luffy is absent.
There's a reason why Jinbei was practically "Yessir" to everything Sanji said- which somehow pissed him off for whatever reasons.