I honestly don't know how to word this well enough to get my point across, but here it goes. Le Guin's in a nut shell is saying that using technology as a weapons will lead to tragic on a global level, but using it as a cultural bag could lead to a outcome that is beneficial for everyone involved. Words which hold meaning are a form of technology therefore in order to have the most realist settings and outcomes they should be used as carrier of information in a work. The best explanation that I can think of in which this is held true is the move Arrival (2016), which you guessed it is a Syfy.