Are you saying the second company should not get paid at all?
Keep in mind the Developers do not set the prices, the publishers do.
For example Guitar Hero 3:
Neversoft developed the PS3 and XBOX360 versions.
Budcat Creations developed the PS2 version.
Vicarious Visions developed the Wii version.
Aspyr Media developed the PC and Mac versions.
Activision published it and set the price.
So you see with your system someone does not get paid.
if you want to edit everything maybe you should stop watching TV and movies and playing video games.
Stick to reading books and you can sit there with a jiffy marker and redact the content to your hearts content.