In RPG terms evil comes under the the definition of "guys who its ok to kill because they are not good"
Literally. You'll notice generally speaking there are few explorations of Orc culture, cause if you realized that that orc barbarian who is mapped on either a germanic raider or a viking raider is stealing food from a village for his starving kids (because his tribe has been ousted from the nice places to live by humans) it becomes a game that's vastly different from D&D.
After going through all the background material for Brevoy its pretty easy to draw a comparison with the state of Brevoy and the Song of Ice and Fire series. Has anyone diverted the course of the adventure path into something that has interactions with Brevoy and the whole Rogarvia/Surtova issue?
The real question about a selfish background is whether you expect the GM to have your backstory feature front and centre above 1) his plot and 2) other people's backstory. Otherwise its just complexity that may or may not get used in game.
I get the impression despite the volume of special abilities the PF Monk gets it still somehow lags behind the other classes in use, up until high treasure levels where you can get a pretty crazy AC. What would need to change to get them to contribute better to a party?