I'm going to have to disagree with you there. Lots of RPGs have meaningful dialogue options.
Edit:
I guess maybe I just like the branch option much more than the line option. I like it when being mean or sarcastic to an NPC garners a reaction and a change in that character's attitude toward you. Being rude to say Nick Valentine and then having the conversation just continue on as normal is a lot of cognitive dissonance for me.