Tinee....
Why is that guy 'buggered'? He may have napped quite well on the flight across to Perth.
What about the Perth-resident pilot who was working on renovations since 6am after a night of disturbed sleep due to a young family. He tried a late afternoon nap before sign-on but the kids got home from school & he got no more rest so he quickly mowed the lawn before heading to the airport after dinner. Any risks there?
And can you attribute any safety 'events' to the pilots you've inferred are being irresponsible?
Pilots I work with take their responsibilities & obligations seriously. Unless there is evidence that the status quo really causes problems I think that 'well enough' should be left alone.😉