Because if I have a government service with millions of users, I don’t want the cheap shitter servers to crap out on me.

An employee is going to cost anywhere between 8k and 50k per month. Hiring an employee to save 200/month on servers by using a shitty VPS provider is not saving you any money.

If you have millions of users, you absolutely need to have someone whose whole job is managing infrastructure. Expecting servers or cloud services to not crap out on you without someone with the skills and time to keep things running seems foolish.