There is nothing special or unique about Uber. Yes, their app is pretty. Yes, they are ubiquitous around the world. But there is nothing about it that cannot be copied by a Chinese state-owned enterprise. One could argue Uber's only major advantage is its waterfall of investors.
Uber's most significant long tail value is their heaps of traffic flow and passenger data. Sounds like the exact kind of thing a rich and historically totalitarian regime would want for themselves. And if you want to spot patterns in a potential dissident, it helps to know where they go.