Actually, those responsible could organise a pi**up in a pub, but there's no incentive for them to do so while ever they are making enormous risk-free profits (and paying no corporate tax) without having said pi**up.
Just to show how entrenched crony capitalism has become in Australia, the manager of the Canberra airport recently whinged, publicly and unblushingly, about federal public servants not travelling as much as they used to, thus adversely affecting the airport's profit margins. If these people had their way, taxpayers' would pay for a department to be set up comprising 'public servants' whose only job would be to travel so as to maintain and increase the profit margin of the privatised airports. All in the public interest, of course.