Robin Hood is actually quite aligned with American values. Standing up to, or outright rejecting unjust laws/taxation was a major factor in the birth of the country. It also embraces aspects of the American psyche that value the act and social contribution of the subversive. always had a place near and dear to the American cultural heart, in spite of what the law and order crowd would have you believe.
It has, however, aged poorly, as the arm of the law has lengthened, the voice of the town crier become nigh-unignorable, and the medium of the truly successful in the sense of magnitude of value extracted vs. value provided by has become far harder to assail since it is generally a private individual doing it instead of an authority figure.
Then again, timea are a changin'.