Uber has demonstrated a willingness to treat their employees like shit. The fact that local governments haven't interfered more is a testament to the pervasive attractiveness of two-bit libertarian confusion. I don't want to be driven around by a driver on their 14th hour of work. I don't want to be driven around by a driver with a poor driving record. I don't want to be driven around by a worker who is being exploited because they have been wrongly classified as a contractor and willfully mislead about their earning prospects. That's why we have government labor and safety regulators, because the profit motive is constantly in conflict with the rights of individual works or customers.
Don't like e coli? Don't like false advertising? Don't like children smoking cigarettes? Don't like predatory lending? Thank a regulator!