Definitely not. I live in São Paulo, where the situation is much better than Rio, for example, but still. With Uber you have a much lower probability of being

Definitely not. I live in São Paulo, where the situation is much better than Rio, for example, but still. With Uber you have a much lower probability of being scammed and a much higher probability of getting your money back after it (with taxis the probability of getting your money back is basically zero). And by the way the probability of being scammed at all increases not only by being a foreigner, it increases only by being from another place and not knowing the city. There are dozens of cases of friends of mine born in São Paulo who got scammed by taxi drivers in RJ. With Uber/Cabify/99 this became much less common.