No. Just no.
Uber could hypothetically send a message to every rider, “We are very busy right now in Chelsea, so unless you really, really need to go somewhere right now, make a personal sacrifice and wait.” And they could message every driver, “We are very busy right now in Chelsea, so unless you really, really need to do something else right now, make a personal sacrifice and get on the road.”
Let’s say you are a decent, upstanding person and you get such a message. On the one hand, you want to help your neighbors in Chelsea; on the other, you have a job interview in Williamsburg in 20 minutes. What should you do? Is your need for a job “really, really” important? How important is “really, really” important anyway? Why should you, a decent, upstanding person, lose out on a job so that some selfish clod can take an Uber (your Uber!) to meet up with some girl he matched on Tinder?
This is life under socialism: decent people make sacrifices in the rather vague hope of aiding others, while selfish people soak up all the value in society.
Fortunately, we have a free market, where people do good by doing well. Should you take an Uber to a job interview, during a civic emergency or otherwise? In a free market, you don’t have to consult anyone’s preferences but your own. Do you wish to pay the current rate, or not? Similarly, the driver need only ask himself if driving, for the current rate, is what he would like to do. The price system automatically and impartially arbitrates the preferences of seven billion people all over the Earth.