As opposed to, say, advertising on TV commercials in Illinois and Connecticut by using somebody who speaks with a Deep South accent that is more difficult for the locals to understand?
As I said, this is not a U.S. Government pamphlet. It is ADVERTISING that the advertiser is trying to get people to take the time to read. The faster an advertisement is to read, the more likely it will actually get read instead of being thrown in the trash.
When Presidential elections were tipped by the Electoral Votes of a single State in both 2000 and 2004, who needs to bother advertising in the most effective way to reach your potential voters?
Have people with Bronx accents on your TV spots in South Carolina. If the Southerners don't pay attention, who needs them.
It is much more satisfying to cut off your nose to spite your face.
"Thanks for your help, raybbr! Your advertising skill put me here!!"