No, it's not stealing. Yes it is wrong - if you don't pay for creative content, content creators won't create, which is a bad outcome for society (and no, don't give me any crap about people creating for free - sure, some might, but I certainly wouldn't be spending my weekends and nights writing an application if I didn't think I'd get some money for it, and I doubt that I'm rare!).
This is where governments are supposed to do their jobs - create laws to encourage desirable behaviour. For example, they could start passing laws to make it illegal to publicly share copyright-protected works. They could also make it illegal to facilitate the sharing of copyright-protected works, putting operations such as TPB under pressure.
Better than just making it a law, make it one of the conditions of membership in the WTO - it's a logical activity for the WTO anyhow, seeing as an increasing percentage of world trade is IP. That way, there is a powerful tool available to force compliance at an international level.