If Jinbe didn’t run to get zoro back how would things change?
Lucci would have died.
Mars wouldn't get the info.
He would escape the labophase claiming that he can't face someone with such enormous haki that reminds him of Ryuuma.
He would tell other Gorosei that someone as powerful as Ryuuma is inside the island.
Gorosei would order all marines to human shield for them to escape safe and then retreat to not piss off Ryuuma like person like they did in the past and it was a mistake.
They would tell it to papa Imu.
Imu would demand for them to raise Zoro bounty to over 9 BILLIONS!
They would track Zoro to the next island (which wouldn't be Elbaf) and then send Mother flame there.
Zoro would sense Motherflame and destroy it before it erases the island. Then Big News Morgan would spread to the world what amazing feat Zoro had achieved and that would make him the new WSS. Zoro would have made Enma black blade during this feat and that shitty nerf sword would stop making him exhausted.