I think this is easier because disgust is relatively arbitrary to begin with, in that it seems to implement a function over the world-you relation (roughly, things that are bad for you to eat/be near). We wouldn't expect that relation to have much coherence to begin with, so there'd be not much loss of coherence from modifying it - though, arguably, the same thing could be said for most qualia - elegance is kind of the odd one out.