Of course, these were not people who were uneducated or anything so they had some skills that they could use as well, but they just didn't because Uber made them THAT much money. I know a family and both husband and wife they do Uber and they are making more money than median family income of an American household, which is about 60k give or take, and they are making about 88k together per year, which is proof of how much you could make with these.
This is why it's better to actually have a career if you can, if you can't then you could do Uber and there is nothing wrong with that, but if you can build a career, in any field, and master it and be great at it then you should definitely be doing that instead of driving Uber, because it will pay better, and it's more comfortable.