> but at the end of the day, I'm reshaping my speech to achieve a certain goal, rather than to convey facts.
The idea that the only goal of communication is to convey facts is (charitably) a pretty autistic view of interpersonal relationships.
There are many situations where conveying facts is not the primary goal, and there's a world of difference just in how facts are conveyed. Facts probably aren't going to stop your toddler screaming for ice cream. Telling your wife that dress makes her look fat likely isn't going to help either one of you. Calling out a coworker when they are wrong isn't going to improve your working relationship. And so on...
Humans convey emotion and thoughts in conversation. We have mirror neurons that literally model an approximation of the internal mental state of the person you are talking to.
Facts won't stop a toddler crying for ice cream. But a clear unmoving boundary conveyed with love stops the intensity of their request and allowing them to have the sadness and anger at being told no and treating them with kindness and love even while they are expressing big feelings of disappointment creates a trusting, safe relationship.