Heh, The Elder Scrolls, games where you can join 'every guild and become 'every highest ranking member.
At least Oblivion and Skyrim, I forget about Morrowind and have never played Elder Scrolls online.
I'd often join them in Oblivion, mechanically fun quests, fun dialogue and characters, jumping roofs, dropping elk heads on old men, good times.
Though I'd feel bad about some of the quests, so it'd usually be a character created 'specifically for 'just playing the Dark Brotherhood.
. . .
I've never played Dungeons and Dragons,
But they have that Alignment Chart,
Probably a lot of players and characters fit into Lawful and Neutral Evil, willing to play nice with their ingroup and fellow players, for the fun and benefits. Socialization there.
Then there's the Chaotic Evil, not as great a fit into a group, I imagine.