These comments crop up regularly on outage posts. There's probably some psychological bias that explains it but I can't remember... I think the last time Google went down there were comments blaming it on Summer Interns :)
In all seriousness... if a single employee can accidentally single-handedly screw things up you've got a process problem. There should be checks and balances to make sure that what you're trying to do make sense. These might be in the form of a code-review, automated validation, a staging environments, etc. Yes, these might be things that don't exist at a scrappy startup and that is fine as they'll get there eventually but for any large company not having good processes is reckless.