It isn't that I'm against work - although there are times when I'm with Bing on this matter - but that the thing isn't inherently a good thing. Working isn't essentially ethical and not-working essentially unethical. It may be unethical to lay about the place knowing that the efforts of others will provide for you laying about - but even then I'm not sure that applies in the aggregate.
Today I am busy. I shall work 12 hours. But I don't think this is a good thing. Nor does it make me better. It's just today.