Ask HN: Best way to prevent UX arguments with non-UX designers?

Sometimes it seems like I spend a lot of time arguing UX design with non-UX designers. I definitely don't mind the act of explaining this stuff to clients, but it often seems like unnecessary time and energy spent. I like to keep my clients involved in the process, so is there a good way to avoid these kinds of discussions without just going all the way and coding up the interface before showing it to them (which has worked well in the past but seems a little disrespectful)? I imagine graphic designers have a similar problem too.