 Having unsuccessfully applied to continue as Chief Censor after Parliament passed the Films, Videos, and Publications Act 1993, Wrightson became television programme manager, and soon deputy chief executive, of New Zealand On Air in 1994.She then became chief executive of the Screen Production and Development Association (SPADA) in 1999, chief executive of the Broadcasting Standards Authority in 2003, and is currently Chief Executive of funding body New Zealand On Air since 2007.She is also a chartered member of the New Zealand Institute of Directors, and a trustee of the Digital Media Trust that set up NZ screen history and culture site NZ On Screen.