to add to what bernard said,
you would have to have different NPC reactions based on the PC alignment, looks, and attitude. a 'good' alignment might get a different reaction from an NPC than an 'evil' alignment PC. the same goes with looks, the better the looking a PC the better chance to get a better price or more info from NPCs. in pen&paper these things are a major part in role playing. if these could be add to a crpg it would open different dialouge options and give different quest.
