If your power goes out or there is a water leak in your home, you need an electrician or a plumber. Preferably one who doesn't have to live five hours away. If you need an ambulance and medical attention, you need doctors, nurses, and medical personnel. Hopefully they didn't get priced out of a 50 mile radius of your home.
And if the world consisted of only millionaires and an army of robots, if everyone is a millionaire, no one is. A carton of milk would just cost $700 and a lower end house $30M.
Be a YIMBY. Embrace looser zoning regulations and more and denser housing where you live. And don't jack up the rent to market rates if you're already turning a profit.