She did more than just steal food. Along side her male counterparts she lead a rebellion against Hanzo. She is a talented ninja, even with her paper techs she is able to restrain multiple ninjas at once:
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She isn't stupid ether, she made plans to defeat Tobi knowing he would turn his back and try something against Nagato and herself. With her paper ability she can easily out maneuver most ninjas, She can construct large objects out of the paper quite easily, she can easily hide paper bombs within herself to defeat her enemies.
-What I'm getting at is that she is quite strong an is above most jounin ninjas. Her only true weakness are water and fire. But just like the hozkui clan she is basically invulnerable to taijutsu based attacks and can easily manipulate her body at will.
I could care less about Konan. But truth of the matter she isn't weak