Mr Campbell, 52, is facing trial over the alleged murder of his wife who fell 50 metres from a cliff in the Royal National Park during a camping trip in March 2005.

During his closing submission, defence counsel Sean Hughes reminded the jury his client was not on trial for being a philanderer.

"This prosecution case has no shortage of evidence which might point you in the direction ... that Mr Campbell has no respect for women, has said some dreadful thing describing women known to him in the most derogatory terms," Mr Hughes said.

The "great challenge" for the jury would be to "put aside this barrage of material as to how Mr Campbell has a lack of regard for women", he said.

"Being a gold-digger, someone who marries for money not love ... doesn't mean the person ... is a murderer."

Mr Hughes said that Mrs Campbell's death was far from a well planned murder, as opposed to the Crown prosecutor's "spin" on the case.

Mr Campbell had not chosen an area that was well off the walking track and it would have been possible for anyone to hear Mrs Campbell scream if she had been pushed.

Mr Hughes also asked the jury not to judge Mr Campbell's way of grieving after his wife death.

While some of his behaviour had been "distasteful in the extreme" it was "extraordinary in this day and age that you are asked to make a judgment about people's emotions ... whether he grieved properly", he told the jury.

Mr Hughes's closing address continues.