your 76% crit chance is coming from somewhere. Those points are wasted on the rogue, and should be going into other things. It takes a LOT of gear points to get your crit chance that high. there are a few rules of thumb to maximize your rogue damage.
1. Generally speaking warfare is the go to best place to put points for both warrior and rogue. For rogue, after warfare, then you go scoundrel. (obviously you need enough scoundrel for your abilities).
2. Daggers are super common drops, particularly with lucky charm. That said, I find I am buying my weapons most levels.
3. Invisibility effects are your best friend on the rogue. You can really get those numbers up. My rogues damage are more consistent than my 2h warrior, and they do more overall damage.
Now... if you want to compare archers to rogues / warriors, that's another story
