Delivering the Junk Mail

What is it like to be that postal worker going miles to deliver that junk mail, knowing it may be in the garbage even before he is off the street?  Its value is not only in its being read.  His role is not to insure the information has been received.  He is the deliverer, the person making possible the choice.  He may not agree with the choice presented and when the same mail comes to his own house he may rush it to the incinerator, but for those he would serve the offer is the issue.