So you are against exploitation, yet you add a "but"? Who cares if someone else can do the job pretty readily. Anyone can be a prostitute or stripper (yeah, I know, looks and all). Some folks would argue that a 17 year old might do it better, but that's no excuse for exploitation.

"If people's regular jobs paid a "living wage", people wouldn't have to Uber, but it's how the world works." Just because some folks have to do it to get by doesn't make it right or desirable. If we can do things as a society so that people don't have to Uber just to get by - and we aren't doing it - we as a society are horrible people. And that is more where we are at now.