“Nobody gets a flight because they want airline miles or avios or tier points. People catch flights to get to places and presumably, by the title of this website and forum, to do business.”
Sorry to say Karen you are totally incorrect. There is a thriving industry of people who are tier point runners. Head on over to FlyerTalk (or Headforpoints or Flyingpiggie or many other forums) and you will find a very active industry of people who do it. Sometimes combined with business, sometimes with personal money.
Sounds like you are the one who needs to get out a bit more?