Dick, isn't it all about cost these days? Just like a business case in any organisation.
Maybe if you can work out how much it costs you to hold, multiply that by the number of trips you make and the associated environmental impact, blah, blah, then multiply by everyone else that uses it and then use that as an argument. After that, add in safety issues, demonstrate the number of aircraft that have been lost due to the diversions etc.
The way it is at the moment it would seem that you have a holiday house just south of Willy and you are complaining because it increases your trip time to your Sydney offices each day by 10 minutes (hypothetical example of course).