First of all, I would like to say that I agree completely with everything everyone has said that praises the Witcher and Deus Ex. This is how morality and choice should be handled.
Anyway, I think there are 2 reasons why we have morality systems and they are both the fanbases fault (or at least developers trying to pander to it).
The first is that nowadays people are demanding more and more choice from their games. Its now not good enough for a game to have a simple A to B story and instead we must be able to make our own choices in how the game proceeds, even if this choice is an illusion. Unfortunately, the easiest way to do this is through black and white morality systems with some sort of reward for doing either. Personally, I'd much rather have a game devoid of choice but with a good story (hence my enjoyment of JRPGS)
The second is the desire to "Win". For a lot of people (and developers) morality systems are used as a measure of how well they are doing in the game and the inclusion of rewards for going all out one way or the other (either in items, dialogue choices or achievements) encourages this.
Anyway, I think there are 2 reasons why we have morality systems and they are both the fanbases fault (or at least developers trying to pander to it).
The first is that nowadays people are demanding more and more choice from their games. Its now not good enough for a game to have a simple A to B story and instead we must be able to make our own choices in how the game proceeds, even if this choice is an illusion. Unfortunately, the easiest way to do this is through black and white morality systems with some sort of reward for doing either. Personally, I'd much rather have a game devoid of choice but with a good story (hence my enjoyment of JRPGS)
The second is the desire to "Win". For a lot of people (and developers) morality systems are used as a measure of how well they are doing in the game and the inclusion of rewards for going all out one way or the other (either in items, dialogue choices or achievements) encourages this.