Very simple, don't make him relevant. We have given him so much power that we deserve whatever that's coming our way. This should be a decentralized industry but with our actions so far, we're centralizing it. Elon wasn't important until few months back, whey then are we taking everything he says or tweets as a reason to make decisions in the market.
Elon Musk is a polarizing figure and it is true that the community was looking for someone to be the voice and may be so is the reason everyone jumped to his bandwagon when he started talking about BTCitcoin because he is an influencer and can make major changes in the market and he is a techie but if you give too much importance to an individual they always bite back 
. The cryptocurency industry should be bigger that Elon that no matter what he said won't have any effect since he wasn't one of the forerunners of the industry from the onset but due to our insecurities as a community and our hope for a cryptocurency messiah, we let our guard down and let the rich folks milk us of our funds.
No one could reach the level of Roger Ver and there is no point in looking for someone 
, there was a time when he influenced people with his passionate speeches about BTCitcoin but now the market has grown to a level that we do not need any voice to advertise the novelty of the project.