Apple, which has the highest profit margins, is on a crusade to make labor less cheap, thus lowering profit margins for everybody, which will hurt their low margin competitors much more than themselves.

I'm not saying that's their only reason but let's be careful applauding their altruism and ignoring the business merits of their policy.

BTW, also, if some Apple competitors can only exist because of the temporary cheap labor pool (one day China, India, etc will modernize a lot more. maybe it will take 50 years but it is temporary), then maybe that says something interesting about their businesses.