Yeah, I've wondered this as well, lawsuit aside.
MJ isn't as rich as the France family, but he's absolutely bigger than NASCAR, which hasn't happened before.
I've seen people refute this by referencing the limits of even Dale Sr's pull, but Dale isn't MJ. Michael Jordan is the most famous athlete of all time, and probably still one of the most famous people in the world.
Maybe the Frances don't care. But getting sued by MJ, and then having MJ walk away from the sport is a historic fail of epic proportions. NASCAR will never be respected by sports fans who aren't already invested in the sport of its something MJ sued and then walked away from.
This doesn't have any lawsuit implication, imo, but NASCAR's public image could be at the mercy of what MJ does. He's bigger than NASCAR. Much bigger.