I don't know if it's really specific to one culture. Look at US companies after they go through a lengthy legal saga, it's obvious they screwed up, they're paying fines or having to adhere to court-imposed consequences. Their press releases:

"We admit no wrongdoing. We are only settling to move past this. Our business is strong/secure/competent."

It's like the first rule you learn when you go into corporate communications is to never admit you did anything wrong or project anything other than confidence and correctness.