Chinese is important, but I would rather learn a language relevant to my interests.
Also, China wont even get to a high state of power, at least not through PR means.
They wont get on simply through deeds. They have too many policies that conflict heavily with the world, so to be honest, I don't think they were ever get on the same level that America is / was. China is just not a country that many people like, with their uber strict policies and, uh, various other things. Business and sheer amount of people are really all they have going on with the rest of the world, and I doubt I would ever be on the level in a corporation were I need to speak the language.
TL;DR: No, I don't think Chinese is really that necessary to learn. For business, maybe. Very slight maybe. Oh, or if you want to be a translator. In that case, go for it. They always need those.
For that matter, Japanese isn't needed. It's really all about what your planning on doing in you life. I mean, if you're just gonna try to learn it for, well, UTAU or Anime, I don't really suggest it. It's a tricky language that takes major time investment. Of course, if you are someone who picks up and languages easily, then go ahead. I'm not trying to dissuade anyone, just adding my own two cents.
Also, hilarious comic is hilarious. And true. CHINPOKOMON!