While acting in one's self-interest is of course critical in a revolutionary struggle, I think a larger understanding of the totality and a consciosness regarding what you are doing is necessary for any sort of protracted, international struggle. If we sit and wait for these occasional wild-cat strikes and autonomous actions to eventually accumulate to produce a revolutionary situation, I think we'll be waiting forever, while we'll see potentially mass revolutionary consciousnesses get hijacked by all varieties of nationalism, fascism, and populism.