I've created a character with a focus on tanking, and after running 8 dungeons with it there is something I've noticed time and time again:
While my party members get blue drops from bosses, time after time, it seems that I would be considered lucky to strike a green item. The vast majority of the time, I get a white one!
As a tank, my focus lies more on taunting the boss and giving myself and the party damage shields. I do not damage the boss much, I know, but does that mean I do not serve the group in a manner deserving a reward?