Right. That's because a brick wall, marketing collateral and sewage or water or gas pipes are physical goods. You can in fact, "take" their products. Nobody can tell if you make a copy. In fact for digital music, technically speaking, copying is required to reproduce the actual sound waves.
Also, in the real world, you've got contracts between the buyer of a good or service and the manufacturer of a good, or the provider of a service. It's a civil law problem if one doesn't pay. The "intellectual property" maximalists are asking to make infringements (note: not theft) a criminal offense, which is government support.
