Why so Many ED Ads?

Why are there so many ads for medicines to treat ED? If that many people actually had the disease, we as a species would have died out long ago. I think, personally, that the drug companies are trying to push the pills to people who don't really need them. And it's getting on my nerves. I don't really want to hear how this pill has helped you. If I were a parent, I wouldn't want my children subjected to it, either. People who have a problem can talk to their doctors and buy your pills. People who don't shouldn't have to listen to you wave them around and say how great they are.