For companies like the RIAA and MPAA they have business interests that are closely tied into the laws that they're forced to recognize. Because of this they create positions within their company whose job is to ensure the laws are aligned with their needs.
As individuals (even with like-minded goals) we don't have this luxury. We work our day jobs that may or may not relate to the internet directly and then come home to let loose or attend to other needs outside the job. In no part of this cycle is there a massive budget that allows us to pick the brain of those in power during the week. We don't have time to help draft Bills and gain support through our government and in a way, expect others to do that for us.
Who are these people we want? Well other companies of course. We want Google and Yahoo to step up to bat, but we're met full circle with the problem in the first place. They'll lobby government to align the laws with their business direction. And as individuals its up to us to decide if their business direction aligns with our interests.
What is left then? Let the corporations bicker and fight it out but once the bill gets tossed into parliament let our representatives know how we feel about it as the people.
Sucky system but I don't see a better solution right now.