So long as the benefit:cost ratio is still sufficiently high, I don't think anyone gets fired for not scrimping. Better to encourage positive EV behaviour by your employees than to scare them away by firing them for not being perfectly optimal.
The CEO won't get in trouble, but the employee who can't justify a bad result/prompt?
Tell that to Oracle
Accenture says "yeah totally CEOs will pay a lot for literal nothing"
Laughs in 2005-era VMWare and EMC...
Well, getting laid off during the bankruptcy spiral is a form of firing.