You didn't answer the question. No-one ever said pirating was okay (or "not stealing").

Also, I think you're wrong: pirating a movie/book/whatever will at most result in the price of one movie/book being lost from the creators (given that I may or may not have bought it legally otherwise). Copying an app, on the other hand, can result in a (theoretically) unlimited number of apps being purchased where the money doesn't go to the original creators. That is more like ripping a dvd and posting it to a torrent site.

I'm not saying pirating is defensible, but downloading something illegally is far less harmful than copying someone's app.