It sounds like a cliche, but capitalism = freedom. People can choose whether or how they want to get around -- whether it's calling an uber, hailing a taxi, or walking -- and whether the cost of doing so is worth it to them. Similarly, people can decide whether the money they'd make ($69k annually according to this article) driving a taxi is worth it to them, and if not, do something else. There are alternatives.

Capitalism is just the aggregation of all these micro-transactions. Most of the time, intervening in this system means preventing win-win transactions between consenting adults.