The prime difference between Uber and, say, factory automatization is that it's not certain that Uber is strictly better.

All things considered, full-time drivers make less with Uber, have less benefits, and are generally worse off. There's huge amounts of literature concerning the effects of, say, not having health insurance on general job performance (spoilers: it doesn't make them better at their jobs).

So in the end we get lower quality rides, even if they're cheaper (which they aren't always due to surge pricing!)

Obsession with lower costs inevitably bring about generally lower quality goods, empirically (already happened with food and consumer goods, compare a French supermarket with an American one).