If we were to put Elon there then we might as well put Michael Saylor on the list. But if in terms of supporting bitcoin, I think that he is on the same realm as Hal Finney, the only difference is that Hal was the first user, supporter and developer. In a way, I think that the word evangelize fits Elon's because there are some of his supporters that changed their mind when he started supporting bitcoin, we don't know if there is one but we know that he has a lot of followers on Twitter and the odds are higher that they were not firm believer of bitcoin.