I don't get this whole "I-killed-my-family" posterboy thing. It's not like Itachi's trying to make his name based off of that. It's everyone else who constantly brings it up. It's Sasuke who is stuck on it.
Itachi has done it, for whatever purpose. Felt whatever accomplishment from it. And, has moved on. Why won't everyone else? Shit happens.
Itachi would ruin Orochimaru. Gimp arms or with six, like Kidoumaru.