Courtesy...Is it a Thing of the Past?

Growing up and referenced many times in my book "Sensitivity 101 for the Heterosexual Male" is a thing called courtesy--treating others with the respect they deserve. You know things like holding open a door for the next person to step through or holding an elevator, possibly using your turn signal when changing lanes or turning, and always walking to the right of the middle. These all used to be common place occurrences you would see every day. But something has happened...where have these things gone?
People seem to be much more "me" orientated these days...gone are the days of helping others or even just being friendly. What I see daily are people fighting over the last sample at a Costco demo cart, sneaking into someone else's parking space and it seems like no one even smiles at each other any more. When is the last time you said good morning to a stranger?
So with all this happening why should I be surprised that business courtesy is also missing--all businesses are run by these same people.
This subject came up as I was discussing book reviews with my editor. He asked how things were going and my reply was "There doesn't seem to be any trust any more in the world. I am getting e-mails daily from "respectable" companies or people who would love to read and review my book. They say they have read the first 25 pages from my website http://www.philipnork.com/ and really would like the opportunity to help promote my book. So I send them a copy, spending $5.00 for a postage fee, and wait...and wait...and wait! One out of every 4 of these businesses never get back to me. Does that mean they never received the book, or maybe read it and didn't like it, or possibly was it a scam just to get a free book? "
I don't have the answers...maybe I don't even know the questions anymore...but all I ask is for a quick e-mail explaining why there is no review done. If you don't like the book, that's fine. If you didn't understand it, no problem, if it just wasn't your cup of tea, I truly understand. What I don't get is why you spend your time e-mailing me in the first place and then never follow through.
Courtesy...is it a thing of the past? Or am I just ranting on and on about nothing? Come on authors, I am sure you have had this or something like this happen to you. Please share your vents here with me...maybe we can make a difference!