Richo,
Interesting quote from ANSETT.
A rival organisation put it somewhat differently, and instructed Captains to NOT consider anything but the first item on the ANSETT list --- ie; commercial convenience would not figure in the Captain's decision making --- and believe me, this operator meant it --- not just pious words in a manual.
This is one of the (few) CAO's which counts me as an enthusiastic supporter, and I have had a few engine inops. over the years.
I wouldn't be too quick to quote Bader, great wartime pilot, but the priorities of civil aviation are just a little different, he never really adapted, even though he worked for the Shell aviation unit for some years after WW11.
Tootle pip !!