The role impact of a career is the extent to which working in that role allows a person to have a positive impact.
In 80,000 Hours’s career framework, a person’s role impact is a function of two factors: the importance, neglectedness, and tractability of the problem associated to the chosen career, and the size of the person’s direct and indirect contributions to that problem.
Further reading
Todd, Benjamin (2015) What should you look for in a job? Introducing our framework, 80,000 Hours, July.