I would bet Uber has created wealth, a lot of it. Uber didn't just sway rides from Medallions, i would imagine it increased rides by manifold. Note: Not considering environmental impact. (E) I'm not saying it's a flawless model, but you can't discount how it led to more people taking ride shares in contrast to car ownership. I think this is obvious in urban areas.
Genuinely curious about this cycle of opinion on Hacker news. It's trendy to shit on these companies until it's not.