It may take a while but Karma (or what Christ called "What you sow, so shall you reap") always wins.
Tony Abbott (who back-stabbed Malcolm Turnbulll who back-stabbed Brendon 'Horatio' Nelson) is in no position to pour scorn on Labor's treachery. Bill Shorten switched from Gillard to Rudd.
Tony Abbott could be back-stabbed by Malcolm Turnbull. Unlike Abbott and Joe Hockey, Turnbull had a successful career as a merchant banker. So he understands the Aussie and the Global economy and is unlikely to run amok with madcap schemes to cut wages and public service numbers to score political points like Tony Abbott and Joe Hockey could with tragic US-style consequences.