What if the loot is better the farther you go? If your kill an enemy really far away from where your character is bound, then when you loot his corpse there will be some silver coins or something in the loot bag, or high quality food, etc. This may help to encourage guilds to travel across the map, and encourage adventure.
The game calculates the distance that your character is bound to the location of the deceased character and increases the value of the loot.