I don't have a high level rogue. My highest rogue is about 35ish. I got bored with melee and stopped playing. But last night, I was having a discussion with a rogue in my guild (one of the top 10 PVE-geared rogues on our server). I remarked on how it was curious that it seems the worst offenders as far as "epeen" goes--posting unsolicited dps meters in raids/groups, or complaining when losing duels--are people who play rogues and don't have any alts (except other rogues).
My friend told me that people who only like rogues are curious specimens. He said anytime he gets into a raid with another rogue, that rogue will immediately inspect his gear. Rogue mainers seem to put an enormous amount of stock in rogue duels, as well. Like winning duels is a huge badge of honor for them, when I tend to think a duel only exemplifies gear or class imbalances between 2 players.
As a healer myself (with all 4 healing classes at 80, 2 are icc-geared), I never care or worry about topping meters because nobody cares. The healing environment, even in pug raids, is always collaborative and, for lack of a better word, nice. Non-competitive. Tanks, as well, do not seem to get into measuring contests about who can tank "better."
Does anyone else have any thoughts on the matter? Why do certain classes or roles act collaboratively or competitively?