Being horrible to the CSR will never be noticed by the C-suite.
If you think they give one flying fuck about what customers think I have news for you: the only thing that matters is what the board thinks and if revenue is rising but everyone hates the product/company they won’t even blink.
Even then, it's a share price that matters to them. Revenue affects that, but unless they get a K1, it's the share price that really matters.