The orthodox jewish position is consistent with using shabbos goyim. They maintain that the jewish nation was created for a specific purpose ("light to the nations", whatever that means) and their legal (vs. moral) code is the result of this setup; it is only meant to apply to the jews. There is a separate body of law "seven laws of children of Noah" that are universal, and much closer to a "moral code". http://en.wikipedia.org/wiki/Seven_Laws_of_Noah

My funny story, though cannot confirm that it's true, was about a very capable shabbos goy who after some years turned out to be jewish.