Uber's a strange one. The thing is that the US taxi industry before Uber was also pretty corrupt, abusive and inefficient. A few drivers do well knowing the system, companies existed based on connections to the city, most drivers were very marginal with high turn-over, fares were high and companies were slow to take advantage of the web.
So Uber replaced abusive inefficiency with abusive efficiency and provided many more jobs of a similar quality to what taxi driving was before.
Source; once drove a taxi, had friends driving both Uber and taxi. The general response was "not better or worse, just different". Maybe Uber has gotten worse but so have many things...