Or perhaps it points in part to how many people value maximizing freedom over maximizing dollars of income. I talk to most every Lyft and Uber driver; I'd say most of them have a good idea of how much they're making (taking expenses into account) and probably 25% or more specifically enjoy the freedom over the money angle.

(On the other side, that's about the same proportion who wish they could find a "good" full time job but are driving in the meantime to make ends meet.)