Listening to a syndicated show today, a caller complained about all the unproductive 'do gooder' ads he was hearing. This led to the host calling in his producer, who explained something I found interesting:
"We have spaces in our feed for the local station to use for their commercials. We put 'do gooder' ads in these spaces. If you are hearing them, that means there are ad spots that the local station has not sold. A smart business would see these 'do gooder' ads as time available for him to get HIS ad on the radio, and contact the local station to do so."
Think about this the next time you hear an ad to, say, 'save the whales from flatulence.' Wouldn't you rather hear "hey everyone, hire me!" ?