She was re-elected to the Board of Control in 1974, 1976 and 1978 before standing down in 1980. As a result of topping the poll for the Board of Control (on which sat the Mayor and four Controllers elected at-large), Greene became the Deputy Mayor of North York in 1974. In this capacity she sat on the Executive Committee and Budget sub committee of Metropolitan Toronto and reviewed the budgets of numerous departments at various times including those of the Community Services and Housing departments, the Police and the Ambulance Departments. She also ran for the Legislative Assembly of Ontario in the 1975 provincial election, losing to New Democrat Odoardo Di Santo in Downsview.