I have no insights into the per-user cost for Meta to run their platform, but I have a hard time imagining that's what this is based on. I think it's much more likely that users are paying a price based on "what Meta could be making if they sold their data".
It's interesting that there is so much variability in "Tesla vehicles not using Autopilot technology". I wonder if this is just the small sample size compared to the national data, or some other effect?