In 2004, Business Review Weekly listed Burke among its top 50 entertainers list, saying he earned A$8.5 million in 2003.
Burke is a former board member of Landcare Australia Limited and has been active in a number of other public roles. He has been an outspoken critic of numerous environmental advocacy groups. In July 2005, Burke became the Chair of the Australian Environment Foundation, a group that has links to the politically conservative Institute of Public Affairs.
Burke was awarded the Medal of the Order of Australia on 26 January 2010 for service to conservation and the environment through advisory roles, to the horticultural industry, and to the media as a television presenter.