Theoretically most people are followers. If someone comes to your page and see's that its been liked by 100,000's I would say they would be more prone to have a serious look at your website/page/etc. I would agree with what is mentioned above. Though if you were to really populate 100's-1000's of accounts so they looked, acted, and responded like real accounts you could seriously game FB likes, groups, fan pages, website, etc. to your benefit. Its just matter of time, proxies, phones numbers, and the software that can manage it.