The OP was saying that having any spending limit would be antithetical to enterprise usage because it could bring critical services to a halt. My point was, if

The OP was saying that having any spending limit would be antithetical to enterprise usage because it could bring critical services to a halt. My point was, if that's a reason to have unbounded spending, why allow me to spin up a service that can get CPU or RAM bound? > Determine your own graceful envelope, implement accordingly. Which most people do have, but we then also want an "ungraceful" backstop — trains have both a brake and a dead man's switch.