You hire people as self-employed but rip them of the opportunity to work as self-employed by.
1) Not allowing them to set their own fees 2) Not allowing them to hire people to drive for them 3) Discouraging tips 4) Deciding what types of cars they can drive in.
All things you would normally do to people who where hired because they would trade that potential upside of being selv-employed by for instance having access to ex. healthcare and vacation.
In other words. Uber takes away all the good things about being self-employed and replace them with restrictions that would normally only apply for someone who was employed. While at the same time not giving them access to those things that are actually advantageous about being employed.
Uber isn't a technology disrupter it's a legislation disrupter.