Harold Handley spent a significant portion of his career in public service, culminating in his tenure as governor of Indiana. Post-governorship, he focused on charitable work, particularly for the intellectually disabled, earning recognition for his efforts. Handley also played a pivotal role in revising the Indiana state constitution, influencing key changes such as allowing consecutive terms for governors and authoring several amendments. Transitioning from public service, he founded a successful public relations and advertising firm. His legacy is marked by the naming of Handley Elementary School and the Harold W. Handley Highway in his honor.

Harold Handley's political identity is marked by a unique blend of legislative pragmatism and ideological advocacy. His tenure as governor saw an unexpected convergence with opposing factions on environmental regulations, suggesting a highly calculated approach to protecting regional industrial interests. Handley's involvement in revising the Indiana state constitution reveals an ideological agility, as he reorganized state courts and returned some appointment power to the governor while simultaneously advocating for consecutive terms. His legacy, evidenced by the Handley Elementary School and the Harold W. Handley Highway, underscores a deeply rooted commitment to public service.