It should be focused on a list of useful corruptions on critical successes, I've noted to check what it's doing. I'll consider the overall balance as well.
Yeah it would be nice, because it seems all results at least for corruptions it takes from same list. I can fail corruption and still get something like unrully or unhinged, or +1 to hip size. Which seems same list no matter success. Maybe other classes work same. Also if i would seem like too easy you can always have it a chance of triggering useful corruption instead. Or lower chance of critical result.