Avarice

Deep, compulsive greed gnaws at you. Whenever monetary treasure is divided, you must end up with a greater share of that treasure than your companions or you're wracked with feelings of jealousy and ill will. When treasure is divided, if you do not end up with at least 10% more treasure than any other individual companion does, you have a hard time being helpful to your allies. You become irritable, and can't take the aid another action for the next week.