I have no idea whether anyone to speak of actually does consider George Washington Carver an important scientist, though the available evidence suggests he was a very clever guy. Neil deGrasse Tyson, so far as I know, isn't considered important as a scientist by anyone, including himself, but he seems to me very obviously an outstanding popularizer of science on his own merits.
None of which is actually relevant to your remark about dancing bears. The point about the dancing bear, remember, is that it may be an absolutely hopeless dancer by the standards we usually use, and that the only thing interesting about it is that it's astonishing that a bear can dance at all. Was George Washington Carver a hopeless scientist? Nope. Are black people so uniformly unintelligent that it's astonishing that one can be a scientist at all? Nope. (Even on a stronger "race realist" position than seems to me in any way credible.)
Was George Washington Carver a hopeless scientist? Nope. Are black people so uniformly unintelligent that it's astonishing that one can be a scientist at all? Nope.
We're not talking about ability to do science, though. The question is which people should be considered notable, or unusually successful due to their achievements. And it's rather obvious that, e.g. Norman Borlaug (considered by some as "agriculture's greatest spokesperson") is a lot more notable than G. Washington Carver. Indeed, if we're looking for someone worthy of being compared with Albert Einstein or even Marie Curie, Borlaug seems especially appropriate.
Another month, another rationality quotes thread. The rules are: