According to the Bill of Rights, the Uber contract employee has the perfect right to badmouth the company in a tweet. Uber decides not to use his services again. Legal experts look at that and speculate if a law has been broken. However, Yankee common sense dictates that you don't talk negatively in public about the source which provides how you make a living.
Likewise, sort of, back-from-West Africa medical doctor Craig Spencer had the perfect right to roam the streets of New York. He used the subway. He went bowling. And he smartphoned a ride with Uber. He was no newbie about probability that he might be carrying the Ebola virus. After all, he had been treating Ebola patients as part of the Doctors Without Borders mission.
Common sense should have told Spencer to isolate himself for 21 days. He could have done that in West Africa before he returned to America. Why didn't it? That's what we are wondering? Maybe because he went with his rights, not an understanding of how the world really works.
If he recovers, he likely will be a pariah in the U.S. And with good reason. Perhaps he should search for a job overseas. And change his name.