Uber is in the news right now for allegedly paying drivers a median profit $3.37 per hour. Even if this is not true (as claimed by Uber — though in an argument over math, I'm going to go ahead and bet MIT) it's difficult to argue that Uber drivers are making anything like a fair wage. But this is not a situation of Uber's making, it is a sign of the ongoing American economic collapse.
Uber is simply taking advantage of the fact that the American economy is in the toilet, and rapidly circling the bowl and heading for the drain. Actual unemployment is at levels not seen since the great depression. The numbers are a lie as usual, but the particular nature of the numbers make them a bigger lie now than that usual state of affairs; since people drop off the statistics when they are no longer eligible to collect unemployment benefits. When people are so unemployed that the state has given up on helping them, they are no longer counted as unemployed. In an environment like this, are you surprised that people are willing to work for less than minimum wage? When there are no minimum wage jobs left, they will go looking for something even lower.
And speaking of lower, Some of these people are actually sleeping in their Uber car. It's not just a car in which to do business. It's a home.
TL;DR: People who do not understand why anyone would drive for Uber for do not have any notion of just how bad things are in the USA right now. Uber is mad shifty, but the fact that driving for Uber for three bucks an hour seems reasonable because the alternative is the gutter is the real problem.