His saint status is quite deserved through his contributions to the humanities and his existential quest for searching the meaning of (or) being a 'human' and what that constitutes (paradoxically never revealed in his philosophy despite his very Schopenhauerian personality). Here is just a quote from Keynes:
When Ludwig Wittgenstein returned to Cambridge University in 1929 John Maynard Keynes declared, "Well, God has arrived. I met him on the 5:15 train".
Keynes wasn't just any ordinary fellow for the matter.
I strongly suspect through my readings of Wittgenstein and knowledge about his personality through first and second-hand accounts is that he had a high level of (and I mean this sincerely) autism or high-level functioning Aspergers syndrome.
Despite many claims that he led a miserable existence, I think he found happiness in his sorrows and loneliness. He declared on his deathbed, "Tell them, I have had a wonderful life."
I think the Promethean allegory is apt in summarizing Wittgenstein's contributions and persona. A great man, indeed.
Going a little deeper, I feel like Wittgenstein internalized to a degree and extent unseen before of all philosophers before him. One can find Aristotelian, Utilitarian, Kantian, Nietzschian, Spinoza, Hegelian, Schopenhaur'ian, Socratic qualities in most of his works - possibly due to hating himself and doing away with his own ego/id, replacing it with a superhuman superego. I seem fixated on the fellow and to a great degree and extent revere him, just as many people who had the opportunity to meet him had also.
The Vienna Circle alone, with such utterly brilliant minds as Godel, Schlick, Carnap, Quine, Neurath all participated and read the Tractatus, not once; but, twice in reverence for the logical insight Wittgenstein had about the world. Godel never said that Wittgenstein had an influence over him in shaping his views; but, I suspect that to be false at face value. If anything, Wittgenstein's views were a template upon which he probably based most of his thoughts about logic and the meaning of truth.
I have always wondered if Wittgenstein was ever influenced by Charles Sanders Peirce or William James with their views on pragmatism during his transitional period from the Tractatus to the Investigations.