[1][2][3][4] She also helped setup the world's first Rotuman Community Centre in 2020, where language and culture is taught and promoted.
[5] Mario is known for her work in protecting and preserving her native indigenous Rotuman language.
[7][8] In 2019 she lodged a complaint with the New Zealand Human Rights Commission against the Ministry for Pacific Peoples alleging discrimination against Rotumans by the failure to recognise their language.
[7] She has also spoken out in support of the issue of Fijian Hindu claims to a Pasifika, rather than an Asian, identity.
[10] She contested the 2022 New Zealand local elections, standing for a seat on the Puketāpapa Local Board, as part of the Roskill Community Voice consortium, Mount Roskill, Auckland.