A few others, like Einstein, where just the right person, period. To see such a sound point of view coming from a person writing at a time where everything was pointing on the other direction... pretty amazing.
Einstein appears to have been a big-time philanderer, for example. Doesn't detract from his contributions to our society in my view.
Noble or not, people have flaws.
What's important about them isn't their flaws (which millions share) but their unique insights (which millions don't share).
[1] http://www.snopes.com/quotes/einstein/bees.asp
[2] https://archive.org/details/AlbertEinsteinLetterToTheNewYork...
His opposition against Likud and nuanced reservations against the idea of a Jewish state seem so wise in retrospect.
Yes, it could have totally gone the other way too. There are smart domain experts that are very naive, politically incorrect, racist, or intolerant of domains they have less expertise in.
I think pointing out the root cause of the stigmatization of a segment of a society is a very good way to start a social discussion in the modern age.
Unless we as a species are to face our limitations and prejudices with open minds I fear there will be much anguish in the future history of mankind as well.