On the other hand, with for profit colleges, institutions themselves [2] are contributing directly to superpacs and other political groups. It's a totally different metric.
[1] from your link: "Since school districts, colleges and universities are generally prohibited from forming political action committees, political contributions from the education industry generally come from the individuals associated with the field."
[2] The Apollo Group, which owns the University of Phoenix, contributed $75,000 last month to Restore Our Future, a super PAC run by former Romney aides. The pro-Romney super PAC is one of the biggest players in the GOP's long-running nomination fight, pumping more than $38 million into commercials, direct mail and automated phone calls that promote Romney and attack his GOP rivals. http://www.usatoday.com/news/politics/story/2012-03-26/romne...