You're right as well. Perhaps 'more true' wasn't sufficient. I basically was trying to express your same sentiment that politeness wasn't contained in the word

You're right as well. Perhaps 'more true' wasn't sufficient. I basically was trying to express your same sentiment that politeness wasn't contained in the words used, while granting the author's assumption that words traditionally intended to be polite had been co-opted and therefore couldn't be unambiguously used to convey politeness by themselves.