Why aren't rogues top DPS?

[Dominick]

I was a rogue back then, and properly equipped we are required on raids.

You can't play a rogue like a tank on the back door. You better be hiding, backstabbing, and doing anything else you should (or shouldn't be) doing.

Its more of a chess game when you are in a group.

I recall my guild often fielding an all necro and SK group with one rogue. I learned quickly, sneak and hide until the pull, because if it was a bad pull everyone else plays dead but me!