Re: BJJ Politics
It takes a lot of sponsorship or your own cash to make it to tournaments.
And you're right-- you can't just train wherever you want to.
And you DO have to be careful about politics. Instructors/teammates who respect you will help you more. However, don't discount the fact that there are books, videos and other ways to improve outside your team (that are allowed).
All pro fighters know about politics, and the great champions can also have great management. The cream doesn't necessarily rise to the top in this game.