Interesting aside on drug ads from as an example:

These kinds of ads are only found in two countries: America and New Zealand. In the rest of the world, drug companies can peddle their drugs to doctors or raise awareness about diseases their products are meant to address through unbranded campaigns. But only America and New Zealand allow pharmaceutical companies to market prescription drugs directly to potential patients.

Now, the reason the ads are so absurdly structured — and a frequent target of parody — has to do with how they're regulated. In the United States, companies need to warn people of all the potential risks of their drug, and advertise only the indication for which the drug has been approved by the Food and Drug Administration. (Some drugs have multiple potential uses, but only one or two have been specifically sanctioned by the FDA. The unapproved uses are called "off-label" and can't be advertised.) That's why you see commercials extolling a drug's potential benefits — and then slamming you with a laundry list of side effects.