Sure, the point of the rogue is to make people explode, but on the other hand:
Maximizing your Might will give you another 33% damage, roughly. In other words, you're doing about three-quarters the damage of a min-maxed rogue. Of course that isn't optimal, but on the other hand I doubt it's the end of the world.
Use DR bypass weapons, try to get lots of crits, etc. Armour is your biggest hindrance since it'll negate more of each hit. So, perhaps paradoxically, you might be better off using slow weapons with big single hits. Guns or crossbows, perhaps?