Since 2010, the Higher Education Participation and Partnerships Program (HEPPP) has provided funding for Australian universities to 'raise aspiration' among under-represented groups. Underpinned by utilitarian discourses of human capital and individual capacitation, these resources have transformed the ways that universities seek to engage prospective students. This paper turns to an overlooked cohort that is integral to widening participation initiatives, but has rarely been the focus of research. These are the student ambassadors--university students who work within HEPPP programs. This paper reports findings from the alumni component of a mixed-method study which examines how widening participation programs, which are ostensibly directed at future university enrolments, might also help university students who work as student ambassadors to become successful professionals and citizens once they graduate from university. Alumni accounts of their experiences and self-reported impact of their ambassador work advocate a more holistic view of graduate success and how activities beyond mandatory coursework can contribute to success beyond university graduation. Evidence from student ambassador alumni suggests that these positive impacts are broad and long-lasting, contributing to students' professional successes and personal lives.