Well a ton of games, even shooters, involve a ton of stats to keep track of. Borderlands, for example. The player's skill largely boils down to how well they can balance and optimize stats. That, and fine-scale/digit motor/eye coordination.
Also, for more narrative-driven games, the player is nested within the character, to some degree. This can allow you to experience a world, albeit a less complex world, from a perspective different from your own. This can provide insight into how people's worlds differ across, say, demographic lines.
(edit: and the more atmospherically robust, even realistic, the game becomes, the more it can function to expose the player to kinds of people, demographics, that they may not otherwise enjoy exposure to.)