- Unlike in music and movies, you can have competition. You can have numerous programs that offer similar features. For instance, there are dozens of audio file playing software. The situation differs with music and movies. There are no two vendors of "Pirates of Caribbean" or "Yellow Submarine" by Beatles. Of course it stays true as long as there is no software patents law in Europe as it is in US.
- There are free software replacements to most of the common software.
Even Microsoft realized that software patents are a bad idea, and using it's influence to overrule this law.