Desperation and misunderstanding is forcing Uber drivers to drive passengers. The money they're getting has three components: the first part pays off their marginal costs (gas, insurance), the second pays off their fixed costs (increased depreciation on their car), and the third is their wage. How much is left after the first 2 components are taken off? It varies widely and is hard to calculate, but suffice it to say "not much".

Driving for Uber is like selling your stuff for cash. It's better than starving, but it's not a good choice.