Phantarch
First Post
Yes, it does seem to be incredibly selfish until you realise that literally 100% of what a Player has control over is their character which makes what that character is the only real thing of importance to a Player.
Except that this isn't entirely true. Every choice a player makes for their character's background SHOULD have direct implications on the entire campaign, and can effect sweeping changes that are then the responsibility of the DM to actually flesh out and incorporate. So, really, each player has control over large components of a setting and campaign, from NPCs to organizations to cultural groups to locales. And this is a GOOD thing. But these choices should be made in consideration of the DM who has to flesh out these changes. If you are pushing for a DM to incorporate stuff that doesn't spark the DM's imagination*, it's going to come out as flat, forced, and uninspired, which will detract from the overall enjoyment of the game. These choices should also be made in consideration of the other players to make sure that the dynamic of the group will be fun and entertaining for everyone.
*I should clarify that I DO think that a DM should try their hardest to be inspired to include interesting concepts and be flexible. I just think that it's OK for a DM to ultimately decide that certain things don't fit with the tone and theme of the specific campaign.