corruption absorbing
This is by no means high priority and the way it is now is probably by design. However there is only one artifact containing the essence of chaos that is considered anything better than useless (shield of raw steel). Corruption is already an enemy that is difficult to deal with, and frankly I'm not sure there are any stats that you could attach to these items that would make them any better than very situationally useful. Does anyone use the boots of great speed, even after the bonus was tripled? Maybe the value of these items is a little different for certain challenge games, perhaps someone can tell me.
I think it would be nice if there were an artifact, or wand-of-wishing-rare (and unwishable) item in the game that absorbed the chaos 'aura' of these items, so that only a small of percentage of said corruption passes on to the bearer.