You are just wrong on the technology.
The reason that Santorum has very high results over time is because the links are not link farm links. Google places a high value on unique content, from non-spammy sources.
Every time someone blogs about him, with unique content, and links to the site, it increases the trustiness of the site. Link farms create low value, untrusted, inbound links. They are easy to filter out because they all share the same characteristics.
If you got 100,000 conservative activists to push an internet meme against a Democrat, or whomever, for 5 years, you'd build up millions and millions of good, high-quality, inbound links to a URL. But you that hasn't happened. (Because it's hard, and requires conviction - things you aren't going to get in five minutes).