This article examines the Qhapaq Ñan Project in Peru and its unprecedented mobilization of heritage policymaking to foster a participatory approach. The World Heritage listing of the Qhapaq Ñan, or Inca road system, catalyzed a new ethos in the Peruvian cultural heritage sector, reflected in a cohesive set of values and practices centered on community participation. This study analyzes the crafting of a participatory approach within Peruvian national heritage regulations despite legal, technical, and ideological constraints, following the rationales and processes that challenged traditional material-centered paradigms. It focuses on how heritage specialists reimagined their ethical commitments in conceptualizing and implementing this framework. It further demonstrates how participatory practices intersect with official regulations and informal practices within pre-existing technical and normative structures, integrating elements such as benefits, consultation, and collaboration. Therefore, the adoption of the Qhapaq Ñan’s participatory approach is argued not merely as a passive compliance with intergovernmental policy recommendations but as an active assertion of ethical perspectives and practices by heritage specialists.