Scott, in a democracy, business exists to serve the consumer, not the reverse. (Adam Smith -- the Wealth of Nations guy -- said that first.)
Second, in market transactions there are externalities, and many of them negative. In economics, the automobile is a common example.
Positive externality:
- Mobile labour pool
Negative externalities:
- Pollution (environmental, noise, ...)
- Congestion
- Car accidents injuring/killing people
- Even urban flooding! (A study from England)
Anyway, by definition the externalities are external to the market transaction. How does a society try to maximise the positive externalities and minimise the negative? Regulation and taxation. In a representative democracy people elect representatives to do this. It'd be kind of boring to have to read 1200 page documents and vote on the policy ourselves so we elect boring people to do it for us.
Negative externalities don't disappear in free-market utopias. Taiwan's high economic freedom comes at the expense of the environment, not to mention corruption and poverty also. A lot of the island is extremely polluted.
And the other things Freemarketists tend to overlook are anti-competitive behaviours. I work in the tech industry (I'm an electronics engineer) and I see a lot of this. Vendor lock-in (obfuscation, DRM, patents, bribery, ...) is a favourite for preventing markets, therefore competition, from working. Intel just got clubbed for anti-competitive behaviours, again. But ignorance shouldn't be understated either. So many people are clueless regarding tech. Perfect markets require knowledgeable participants. The combined knowledge of society is far too much for anyone to be knowledgeable in very many areas.
Again, how does society try to discourage anti-competitive behaviour and protect the consumer from businesses exploiting an ignorant customer base, regulation.
I'm sure you know everything that I've just written, it's all common knowledge. But freemarketists tend to think that if markets were more-free then a lot of these problems somehow magically disappear. They don't. There is a guy checking toys for safety because children have died in the past. Not because some politician created a job for his buddy, that part may just be chance.
Anyway, regarding Obama and his healthcare. The reason why govt healthcare insurance is cheaper than private insurance (as all OECD countries demonstrate) is because a single buyer and multiple sellers is called a monopsony (this gives the govt good bargaining power, like with Medicare+Medicaid), and because administration costs are lower.