Walmart has a labor monopsony in much of the rural United States. It would be exploitative for them to pay below a reasonable wage because their employees have no other options for employment.<p>That is not the case for Uber in California and will likely not be the case in the future.  Uber mainly operates in heavily populated areas where alternative employment is available.  Additionally, Uber drivers are not geographically restricted in their employment by the nature of the job.  They have a car and drive all over town for Uber, so they would be able to find a job &quot;driving distance&quot; away from where they live.