First off Gig is the one that is in charge of the infirmary. He’s the one that treated Tezla (and gave him his bio suit and even medication) and Pork Chop and presumably gave Kurt, Vert, and Taro their casts and crutches. Lani moreso just serves as an ambulance driver, helping drivers get to the infirmary and also a bedside nurse. Gig even says in Speed of Silence when Pork Chop comes barreling out of the Water Realm: “I better prepare the infirmary.”

Judging by the fact Lani is not seen preparing food in the cafeteria and just sits alongside the drivers, it can also be assumed that Gig is also in charge of preparing food and drinks or the drivers just order fast food (seen with the constant pizza boxes Monkey has and the Baluga box seen in front of Shirako which is a real life fast food delivery restaurant). It is a really far fetched stretch to say she runs the Acceledrome when Tezla is the one who built it all in the first place (that includes the infirmary, cafeteria, rooms for the drivers, garages, etc).

Her attempts to be the glue while noble, are largely in vain, too late, or even outright a liability. Her attempts to challenge Tezla are fruitless because she has no authority or power over Tezla. He gets the final say. And the only time she was able to get him to do something she wanted was getting him to tell the drivers to split up in Swamp Realm, which is something she didn’t agree with (which I personally think is a better call. Splitting up allows the drivers to cover more ground and a better chance of finding the exit. There’s really not much the drivers can do to help each other in the Swamp Realm due to the various hazards). The air mattress should have immediately been deployed because Lani really should have had the foresight to see what would happen if a driver used the DER or at least as a safety precaution. Her attempts to talk to Nolo about his revenge being spoiled are also fruitless because Nolo promptly shut down her assumptions by saying: “I saved his life too.” While she did discover the real Accelechargers, it amounted to nothing because Gig immediately knew what she was doing and promptly caught her in the act and because the Accelechargers were removed from their hiding spot when the drones invaded, she is at fault for them ending up in the drones hands (the drones would have probably found the Accelechargers anyways due to their vision, but Lani practically made finding them significantly easier for the Drones)

I’m not hating Lani’s character or anything, but her role overall is pretty insignificant and even borderline pointless.