I think the (mostly) simplified morality is appealing too. Like in an RPG I know exactly what the right thing to do is, it's the one that's clearly marked at the "good" dialogue choice.

Whereas in real life it's like... am I doing the right thing? Should I be an engineer and donate to good causes, or should I be actively contributing to good causes and choose to earn less money? Should I become an eco-terrorist?? Lol stuff like that