I mean it really depends... like in Morocco this never happens, unless you look foreign. All taxis have a number on the top of the car, so you can just easily report it. And the penalties for drivers are actually quite harsh, even just referring to 'I know the taxi number' means he's shutting up, turning on the meter and getting you to where you need.

You can still have a shitty experience, but for locals it's mostly fine. I doubt Uber will take off there in any big way. I'm wondering if that's the same way for Qatari locals, or if there was another reason for Uber to catch on.