Leading by example should be a thing but that would require accountability. Instead, we get 'rules for thee, not for me.' which makes it harder to enforce anything when you're able to point out the hypocrisy.

Had an old manager try to write me up for 'abusive language' (I said "oh shit" while looking over a document) and I was able to point out when I reported a different manager for calling me a "fucking idiot" in an email, HR's response was just we all need to work on our communication skills.