a) Admin
An admins job is to... damn imagine that! Administer.
So he oversees the servers checking if anyone is breaking the rules as given and as written and punishes those found guilty.
Thats what an admin is supposed to do in an online community.
All those "shinny pillars of the community" are for childrens stories.
This is where the problem lies, and why there
is a need for "pillars of the community"-admins.
The cRPG-community is constantly moving closer to some kind of asshole-community, and it wouldn't hurt if admins would show how fair behaviour works. As they currently don't, we have the result that people are totally fine with someone losing his +3 for 100k, instead of actually helping him.
I don't know what's up with you others, but when I see someone who looks like he could need some help - even if he doesn't notice it himself - I offer my advice. In the worst and least possible case he will say "No, thanks", but in the majority of all cases he will say "Oh really? Thanks!", he will have more fun with the game ( = stay longer = more players on the servers to play with), and additionaly, due to the fact that he perceived the community as kind and caring, he will most likely act this way himself.
But currently you are growing a bunch of asshats. Just look around.
If everyone would support this "everyone for himself, against everyone else"-attitude, this community would become worse and worse. Which is equal to smaller and smaller. Think about it.
(Unfortunately I fear I cast pearls before swine, because our society in real life has the same problems. Because everyone cares only for his business, and everything which is not illegal is to be acceptable, we have companies firing thousands of employees to build a new facility in a 3rd world country to save some money and other similar cases. Things, if you did them 50 or more years ago, would not let you leave your house due to the people spitting on you)
I know, I am probably just too naive