This is sad and wrong at the same time.
What if instead of postal services, Amazon required water or electricity to function. They would have payed just enough to get some level of priority (without making the water/electricity companies turn any profit, just keeping them barely alive), so when the grids get overloaded (e.g. during summer), you could run out of water/electricity because your neighbors ordered some useless stuff from Amazon.
"We're sorry, you can't turn on your A/C today because your neighbor ordered the new UselessThing, which requires a lot of resources to be delivered. Maybe we'll let you use it tomorrow, unless they order the UselessThing 2.0."