It seems more culture impacts language, you don't have social structures that are created in language and implemented in culture later. I agree it's a construct

It seems more culture impacts language, you don't have social structures that are created in language and implemented in culture later. I agree it's a construct of culture though, but I don't know that adding words is necessarily bad. Why would actors learn a language when they can just learn their lines? If you're already borrowing concepts from other languages why not the whole thing. I don't know if conlangs are better, but I don't think it would be unethical to use an existing ancient language for a movie or TV show.