Maybe let you force the issue and win, but the other PC losses some approval towards you in return. Something, anything is better than what we have.
Approval means nothing within the party. Companions do not argue with you, and the PCs can never turn on each other due to the nature of their mission and their own origins.
Rock Paper Scissors was clearly designed to facilitate cooperative decisionmaking in multiplayer. Whether due to shortage of time or lack of inspiration, Larian decided to use it *everywhere* in place of what would be a Charisma/Wisdom/Intelligence check in any other CRPG - including dialogue where only one PC gets the chance to talk.
It's highly unlikely for Larian to revisit every NPC argument in the game and implement something else, and it's unclear whether modders can do anything about it either. Aside from dumping points on Charisma to reduce reloading and setting both characters to Loyal, there isn't much you can do.
have to? You can simply accept that the outcome wasn't in your favour and move on.
Considering an average playthrough of this game takes over 100 hours, I think it's more than a little unfair that you can be locked out of content branches by failing a dice roll. The CRPGs DivOS is inspired by generally did not leave charisma checks to dicerolls.
