One man trying to dictate the direction of a language used by a billion people... that's just not going to happen.
Not that I don't sympathize. I think that "it's" should be the possessive form of 'it', not a contraction of 'it is'. Maybe if we band together we can force-feed both our changes at once to the rest of the world?
Languages by definition are fluid. If a certain way of spelling a word or grammatical structure spreads to become popular (possibly, yes, from one person), then it becomes the new normal.