The government, however, does not work this way. If the government takes over a market (as is happening with student loans) there are no competitors. The government provides the only source of the product, and if it SUCKS, too bad. You're stuck with it, like it or not. Contrary to popular belief, the government does NOT have some holy, righteous desire to do the best for everyone. The government is run by profit-seeking humans, not stainless angels.
I don't know. Again, I'm Canadian and I have a lot of experience dealing with "government monopolies". I'm covered by Universal health care, and this is widely considered to be a better alternative than private health care insurance. Vehicle insurance in my province is also universal, provided by the "crown corporation" ICBC. This doesn't mean that all the insurance brokers are government agents; we have private insurance agents. Everyone just gets the same insurance from different brokers.
My province also has a monopoly on the purchase, import, and distribution of alcohol. If you want to buy alcohol, you have to visit a government liquor store. This means that if you want to buy liquor at 3am, you simply can't. As a result, public drunkenness is not much of an issue except for in the entertainment district when the bars close.
My point is that there are many services provided by "government monopolies" (we call them crown corporations), and instead of causing craziness they work just as well (sometimes better) than private business. Many Canadians vehemently oppose the privatisation of some of these corporations.
Government can, and does, conduct business well (at least in Canada). What matters most is regulation. In a highly unregulated market, both private and public business will of course cut corners and try to pad their pockets. Regulation has a positive effect on market quality, and a highly regulated market (like our banking sector, which has not received .01c in bailout money) will run better than the most free market.
And again. My government provides student loans here, and the sky hasn't fallen yet.