Once she graduated, Rigney was a teacher at a primary school in the western suburbs of Adelaide. She became the first Aboriginal bureaucrat in the South Australian Department of Education. In the 1980s, she agitated for the creation of what became the Kura Yerlo Aboriginal Centre in
Largs Bay and the
Kaurna Plains School in
Elizabeth. She became the first female Aboriginal principal of a primary school in Australia when she took up the post of principal at Kaurna Plains. In 2002, along with Kaurna elder
Lewis Yerloburka O'Brien and linguist
Rob Amery, Rigney was a co-founder of
Kaurna Warra Pintyanthi at the
University of Adelaide, which observes and promote the development of the Kaurna language. ==Recognition==