Acting accordingly and formally isn't synonymous to being cautious about every word you let pass your lips. I guess it does help to keep a bit of check on it, but people who care more about that as far as duty goes put far too much effort on looking good in front of people and too little on other things.

If you're a good person, how good you are at weaving your words into what sounds good on the ears shouldn't matter.

And I mean species outside my planet.