Strong primary healthcare is foundational not only for public health outcomes but also for social trust and cohesion. Countries that invest in accessible, preventive, and community-anchored care build resilience to crises and reduce inequalities, reinforcing citizens’ confidence in institutions. Integrating local innovations, ensuring sustainable financing, and embedding community feedback loops enhance the legitimacy and effectiveness of health systems. Reframing health spending as investment in human capital supports broader social stability and inclusive development.