I disagree $Bonifarzia, mainly because the developers have been leaning on fighting for a long time now and it hasn't been providing much novelty or points of interest. Even those markets Sarva mentioned all serve to, sooner or later, provide either tria or resources for fighting: cooking is creating potions, metallurgy is creating tria for training, books... Well, the books I've sold the most are related with weapons and I've seen others selling those related with magic (which is fighting.) All revolves around fighting, unless by some odd chance you get to have a guild auction when your guild doesn't actually have a guild house already or if you like levelling metallurgy and weapon crafting for the autist fun of it (i.e. without trading with others).
Including other needs, such as hunger, thirst, the need for social recognition (with items of value) and whatever would certainly diversify PS's experience and mind set. Rewarding players for sticking around others actively would also be a great way to balance out IC lifestyles as well. Currently a character that fights trepors all day can improve his intelligence, while a character that writes books and discusses points of view gets 0. Just awarding these characters for being active would be a great motivation, no matter how small the reward is (1 pp each 20 minutes, if need be).
It's all fine if you want to excuse the current blind focus, but I think we'd be better off with only a quarter of the retarded "I must kill the offender" and "I must be an offender!" types of characters. And that will only help with the right motivations and needs.