He's devoted his life to letting people know, and so few listen.
It's something which I have struggled with. Not that I think my ideas are all prophetic, or ignored/misunderstood, but that in the past some of my ideas have been prophetic but ignored, until some point in time where they were validated to be true. With that being a possibility, I struggle to know whether or not an idea that I feel strongly about, but is misunderstood or discounted, whether or not it should be discounted or discarded. It's hard to know what the right thing to do is when you are pretty confident that you're right, but you know you could just simply be wrong.
It's mostly about trying to figure myself out that I'm bewildered, not issues that apply to society at large. But even in that limited domain, I'm still gripped by analysis paralysis for that reason.
[1] https://en.wikipedia.org/wiki/Genetic_fallacy
[2] Genius in the seminal sense.
The problem is, of course, that he's socially Quite Something, and that makes people have a natural level of disbelief that is the polar opposite of, say, the effect that a good cult leader, con man, grifter, or salesman has in terms of convincing people. He has like a -10 to Charisma, except he's actually really engaging and interesting, like a street preacher with 150 IQ.
The change he has affected in the world is phenomenal. It will continue to be a thing long after he's gone. Would be that people would walk around with his bearded visage on their shirts instead of Che and Marx.