I feel obligated to respond to this with a relevant quote:
Alphinaud (After requesting you accompany him to the first meeting with Ser Aymeric):
...Mayhap you feel this to be a waste of your talents, which could doubtless be put to nobler use? If so, I should remind you that more good can be accomplished with the stroke of a pen than the thrust of a sword.
If my many “adventures” in diplomacy have taught me anything, it is the importance of humoring those who have something one wants.
Not every victory is won on a battlefield, my friend. 'Tis the lot of legendary heroes to be paraded about from time to time.
Say what you will about Alphinaud, but he's one of *the* primary drivers of the plot from 2.3 and into 3.0. Like the whole 'road trip' with himself, the WoL, Einstinein and Ysayle was put in motion by his idea to try treating with the dragons to stop the incoming invasion. He implies here that the WoL isn't very good with 'political' matters, being more of a fighter (fitting, since the WoL doesn't talk much and is an adventurer first and foremost). Hence, Alphinaud is the one who does most of the talking for the WoL, and effectively making him our main proxy for interacting with the 'political' sides of the plot.