This study proposes a new framework for corporate value that moves beyond traditional financial indicators such as stock prices, profits, and investor expectations. These conventional metrics fail to capture the extent to which a company is socially necessary or capable of sustaining essential functions over time. To address this gap, the paper defines corporate value as the product of social necessity and continuity, evaluated through seven structural indicators: contribution to local communities, maintenance of social functions, corporate longevity, regional resource circulation, labor stability, creation of tangible value, and AI‑based necessity assessment. The proposed model operates across three hierarchical scales—regional, national, and global—revealing that corporate value manifests differently at each level. Furthermore, the study identifies four types of “value reversals,” where high regional value can produce negative outcomes at the global scale: employment‑preservation reversal, resource‑circulation reversal, proprietary‑standard reversal, and supply‑chain fragmentation reversal. These reversals are not contradictions but structural consequences of scale transformation. By integrating these multi‑layer dynamics, the paper presents a new corporate value model that positions companies as components of social infrastructure and evaluates their contribution to the long‑term resilience of civilization. The framework offers practical implications for public policy, corporate management, and AI‑driven evaluation systems.