this post is so interesting, and i want to say my opinion. Untill now i never found a game in which the evil-thing is well placed. for example look at fable the lost chapter, it's just a go with bandits or with the guards, be an **** or be the super good-guy. and it's this one of the best example i found in videogames and i really would like a game in which there is no good and no evil.
I like the thing in bioshock, where you could kill or not the little sister, and i like very much the quest-choice in the witcher, the first.
If possible in project eternity i would like to see a new approach. No do the right thing and be a hero or do the bad thing and for example earn more money but kill someone you could save. i Would like to decide in every situation what to do, but not a good and evil.
This is a couple of example to show my idea.
You are a good guy the usually help people and deafeat monster etc for money and glory, but one day you see the most beautiful woman in the world. you try to seduce her, but she just snob you and go away, so the hero decide for one time to be not so good. He go to a black withc and ask her for a potion to help him seduce the lady, the witch ask him something bad, like kidnap a child, a first-born, and take her so she can use him like a sacrifice to evoke a great demon.
Then he get the potion and bewithc the girl. And that's all. There could be consequences, like parents of the girl who smell the deception or the demon starts to kill people etc.
Second example.
You are a bad guy, you usually do dirty works to earn money to become a lord and have a piece of lend under your reign one day. But you find yourself in a small village and stay there for few days. the village is attacked by bandits and you could easily run away but you stay and help the villagers to defend themselfs. At the end they give you little money and say thanks. Then the leader of the bandits seeing that you are popular in the village ask you to kidnap some young girls to be sold as slave to very rich lord. Nobody would suspect you and you could earn much money. But you refuse. Just because you don't like theese bandits and their chief, maybe they will trouble you in the future but this time you did something good, and that's all.
i hope this explane my idea of the argument, to sum up i would say: please make a rpg in which you can decide in every situation independently what to do and not a play good>glory and respect, play bad>money and power, just try to evolve theese mechanics
thanks for reading and excuse errors