Well. There is the aspect of 'what type of player are you'. The way people interact with their video character is typically divided among three groups;
A The Character becomes the player
This is actually the most common and is what most games are tailored for. When a player embody their character, they ensision themselves unto the character. Or, rather, an exrremely flattering version of oneself. For this group, the feelgood comes out of the power fantasy, the validation and celebrates succes.
B The Player becomes the Character
This is typically where the 'true roleplayers' come in. This is least common group, but at the same time what this particular game is made for. It's not the group it's most sold to, however. This group embodies their character that is presented, emphatize with the character, and steer the character towards its goals and purposes, rather than following the player's own choices.
C The Player owns the Character
This is the group that knows they're in a game and has no stakes within the narrative at all. Their character is more a personification of achievement and accumulated power. These players tend to skip dialogue, and build the strongest characters with the best gear. They do quests for the rewards solely. This group is most common among MMO's, but certainly exist within single player games.
Now,
A is most likely to 'only play good'; as this feeds directly into the fantasy of being that hero that everyone likes.
B Is more likely to step unto the dark paths, but generally people enjoy a happy ending still.
C Doesn't care. It's just a game. You get more loot and xp if you kill everyone.
An interesting take but I think most players are a mix.
For instance, I have a range of types I can play but none of my characters will serve any gods. I just can't get into that mindset. I tried in tabletop and it was a disaster. The type of actions these characters typically take (outside of combat, that is) just don't occur to me. I can play pragmatic evil but not asshole evil because I think the latter is stupid, and I do not like to play stupid characters. So that's a mix of B and A. And if a fight turns out to be too difficult, I do occasionally get out of roleplaying mode and play the encounter as efficiently as possible regardless of roleplaying. That's throwing a bit of C into the mix.
