I have mixed feelings about him. On one hand, he could have lived a far more glamorous life in someplace like NY or CT and probably had a promising career as a "Rockefeller Republican" and instead he chose to go do volunteer work in one of the poorest states in the country and spend the rest of his life in public service. On the other, he seemed, especially in his final years in the Senate, to regard his constituents like some primitive people who he was the benevolent colonial administrator for.
I wonder if there will ever be any more Rockefellers in politics. (The Kennedys seem to always keep filling up their bench.)
And is he terribly wrong about that? 
Why don't you stupid racist rednecks vote for us?
