Unfortunately, I'm afraid the kind of change desired would require an organized front akin to a political party, because they you could elect members with direct lawmaking/administrative authority. The problem being that the views currently being expressed are so wide in range that one doesn't quite know what to make of them sometimes. Though "inequality in the distribution of wealth" is a historical one people seem to agree on here, I dunno. Moreover, there's a danger of being Ross Perot as a spoiler party that takes democratic votes away and thereby hands the election to the party you least agree with. In this case, that would be Rick Perry....
I was wondering when someone was going to bring this up. I did sort of drop a hint at this a while back.
If you want to get some kind of change done you have to associate the occupy movement with a third political party. I've been pretty damn tempted to start one myself, although there's more than a few things standing in the way of that.
What I'd do is emphasize neutrality on most fronts to avoid splitting the vote too much, and in this theme I'd pick purple as the colour, and dove as the animal. Then set the main party hard line as being political and financial reform. Then start trying to get occupy protesters to take up the banner. Start handing out leaflets, encourage people to do so at all the other occupy locations, make them something with that purple dove at the top.
Start handing out pins, or heck, winter is coming, start dying winter hats purple, hand them out.
Once the media catches on to the fact that a lot of people at these protests are walking around with purple pins or hats on then the movement can snowball from there.
As for splitting the democratic vote, I think a lot of conservatives are feeling rather disillusioned, there's also a massive number of people who don't vote at all. If you can fight people's apathy and encourage them to vote you can do it. You can do it all.
EDIT:
... or heck, winter is coming, start dying winter hats purple, hand them out.
I can't believe I just said that.