I take your point, but Einstein and Wittgentsein are not good examples. You list jobs they held, but those jobs don't reasonably express the success either man had in his lifetime. Einstein was also a member of Princeton's Institute for Advanced Studies from 1933 to 1955 (when he died)[1]. Wittgenstein was also awarded a PhD at Cambridge - without having done coursework or exams - on the basis of his Tractatus Logico-Philosophicus and was an idolized professor for many years there[2].
Neither man was by any stretch of the imagination an unrecognized genius - they were both absolutely recognized as huge intellects with superior achievements in their respective fields when they were alive.
[1] http://www.ias.edu/people/einstein/
[2] http://en.wikipedia.org/wiki/Ludwig_Wittgenstein#1929.E2.80....