We feel that yes, quality matters. We love organic, raw, and unpasteurized! But for someone who is intolerant, it might not make a difference...and then again it might. The best advice we can give you is to test it out on yourself, assuming you know it's safe enough to do so.
As far as the rules and levels in the WLC, we don't make distinctions about organic, GMOs, farm-raised, pasteurized, raw, etc. Many people don’t have access to products like these - so those will be choices that players will need to make individually.