The framers of the Australian Constitution envisaged ordinary people spending one or two terms in parliament and then returning to their normal lives. What we've ended up with is a political elite who make careers out of being in parliament, and their main aim is "to be continually elected and stay on the gravy train".
Every four years (state elections NSW), and every three years (Federally), we elect halfwits (sometimes with allegations of criminal behaviour) who are no smarter than we are, and we expect them to sensibly govern on behalf of us.
We actually can do something about it! Through the ballot box!
I suggest that all voters look to see how long their local member has been in parliament, and, if they have been there for two terms or longer, then "VOTE FOR SOMEONE ELSE". That would soon clear out the dross of long term politicians.