You should check out the banking industry sometime if you'd like to interact with a competent auditor.
Compliance gets taken quite seriously in an industry where one of your principal regulatory bodies has the power to unilaterally absorb your business and defenestrate your entire leadership team in the middle of the night.
They could. But they don't.
I've seen this up close. The regulatory bodies as a rule are understaffed, overworked and underpaid. I'm sure they'd love to do a much better job but the reality is that there are just too many ways to give them busywork allowing the real crap to go unnoticed until it is (much) too late.