Right, I think that's exactly the point of the article. In no world should free sodas make a substantial difference, but it's rather the signal it sends. Much

Right, I think that's exactly the point of the article. In no world should free sodas make a substantial difference, but it's rather the signal it sends. Much like a single cockroach at the entrance of a fancy hotel isn't by itself a problem if it's limited to exactly that cockroach...