They are in fact rare cases, and the cases where those people are denied the desired opportunity to drive for Uber are even rarer. More people are raped --- set aside sexually assaulted --- in taxi cabs every year than are denied this opportunity.

It is obviously a real problem that people are placed on sex offender registries for peeing in bushed. But the commenter above isn't required to address every real problem in pointing out that there's a good public policy reason to avoid having people convicted of real sexual assault offenses driving cabs.

I think it is upto the ridesharing company to set the standards and not an arbitrary bureaucrat. In fact I believe people like you and me might be able to invent better methods of detecting people of dubious characters and can deny them job.