If you benchmark sick leave against other companies - 10 is an extremely high number and it reflects very poorly on the mindset and productivity of the Qantas staff.
And you're going to benchmark that against a bank or insurance company where office workers can go to work with a light cold, whereas in aviation that could end in permanent injury.
Likewise a busted finger or wrist would rule out a flight attendant or pilot but your bank worker can carry on.
I suggest you get real data against a real comparison.