Whizbang Dustyboots
Gnometown Hero
Debates around issues rose organically in lots and lots of folks' Mage: The Ascension games. I think it just depends on the setting and players a lot of time.
My players, who are engaged in what I think is a pretty classical D&D game (there's a mountain, there's a dragon, there's some kobolds, there's feuding dwarf clans, etc.) regularly get into debates about the role of religion in society, since there's a powerful state church and minor demihuman churches. It's done in the context of roleplaying and it doesn't get in the way of, say, kicking kobolds in the ass, but it comes up regularly.
My players, who are engaged in what I think is a pretty classical D&D game (there's a mountain, there's a dragon, there's some kobolds, there's feuding dwarf clans, etc.) regularly get into debates about the role of religion in society, since there's a powerful state church and minor demihuman churches. It's done in the context of roleplaying and it doesn't get in the way of, say, kicking kobolds in the ass, but it comes up regularly.