1. I doubt we do, it's not much better but it certainly is noticably better. I find in Scotland I notice the ref's input a lot more than I do in English games
2. I see your point. Scottish refs are poor and whatever can be done to solve that, even if it only has a slim chance of success, is certainly worth trying.
3. How does it undermine then? Maybe a better way would be to pay them based on performance.