Aside from just being a great movie, Ghostbusters also teaches a great conservative message: big government is inefficient, wasteful and overbearing.
Personally, I liked the university. They gave us money and facilities, we didn't have to produce anything! You've never been out of college! You don't know what it's like out there! I've *worked* in the private sector. They expect *results*.
Universities, with their massive government funding are essentially extensions of the government. As the quote above indicates and most people can attest, government is not results-oriented. In the private sector, if you don't produce you're out. Universities and government offices don't enforce the same requirement.
Now, it can easily be objected that the whole reason the Ghostbusters business was opened was because the University did, in fact, throw them out. But if you listen to the Dean, it seems clear that he's driven more by personal animosity than concern over their productivity. After all, his criticisms are as follows: "Your theories are the worst kind of popular tripe, your methods are sloppy, and your conclusions are highly questionable. You are a poor scientist, Dr. Venkman!" When did that ever get someone in trouble at a University?
Further, check out "Dickless," the EPA guy, also known as Walter Peck. He was clearly driven in his actions by an animosity towards our heroes. He never really examined anything, just came in barking orders and really just made a mess of things, leaving them worse than when he started. In a deleted scene available on the DVD, he's shown trying to get a police officer to arrest the Ghostbusters even as they're having their showdown on the rooftop with Gozer. Had the government had its way, we'd all be slaves to Gozer the Gozerian!
Meanwhile, the only people able to solve the problem and save the world are the privately operating Ghostbusters. In their University days, before results were expected of them, they were ne'er-do-wells and accomplishing little. Once forced by circumstance on their own, they become celebrities, presumably wealthy, expanding their business and hiring new people.
Not only is the free market more effective than the government, it makes those in more effective than they otherwise would be!
(Posting inspired by an article in the latest issue of The Freeman