Design, build an configure your infra in such a way that even if you wanted to destroy it you could not in too fast order. At least the unrecoverable bits and those you can not easily rebuild or replace.

Probably considering yourself as primary expert of system as threat actor is reasonable and thus you should be prevented yourself from being able to do irreparable damage.

> And I can't stop them. So probably need to double down on backups and immutability...

So... you're going to prevent them from getting feedback that they are the clowns in your particular circus? Wouldn't a better idea be to let the idiots in charge get burned a few times until they learn?