Outgoing Liberal MP Dennis Jensen lets fly at party

Outgoing Liberal MP Dennis Jensen has let fly on his party and the "faceless men and woman" who denied him another tilt at his seat.

In a late night speech to parliament on Monday, Dr Jensen also declared the coalition the "worst economic managers".

The MP was dumped as the candidate for the suburban West Australian seat of Tangney after a bitter preselection battle won by Liberal state director Ben Morton.

The loss came after newspaper reports surfaced of racy extracts from a novel the MP penned in 2002.

He's now mulling a tilt as an independent - but not before spruiking his merits as an MP in parliament.

"Good government needs members like me," he said, adding honest criticism was what mattered.

"It acts like pain signalling where there is need for correction."

The aggregate view of the electorate was that he'd done an outstanding job - but that's not what mattered to the Liberal Party.

"What matters to the Liberal Party is conformity, fundraising and branch-stacking," Dr Jensen said.

He also complained that democracy had lost its way because doing a good job as an MP was irrelevant.

And both sides of politics adopted "small thinking and no vision".

Dr Jensen also criticised "fiddling" around tax policy, and joined Labor in calling for a royal commission into the behaviour of banks.

"The coalition are the worst economic managers, apart from all others," he said.