This reflects the fact that a very small portion of the population actually needs charity. (religion.blogs.cnn.com)
At the time, the United States was still a heavily agricultural nation, with a much smaller portion of its population living in industrial cities such as New York City or Chicago. (en.wikipedia.org)
Listing agents will never disappear because of their knowledge and outstanding service most provide; nevertheless a very small portion of the population... specially knowledgeable investors with a support team around them (including an attorney) should be OK with a Flat fee Listing service. (biggerpockets.com)