I think the policies he wants to push are ahead of the times ideas that resonate.

He will be as popular as those ideas are popular, and it's his "job" to make those ideas popular. So yes, by that definition he wants to be a celebrity and he wants people to buy his book.

However, if he pushes forward ideas that just don't make sense, have bad narratives or don't connect with people's sentiment, he will be quickly forgotten.