This article explores the convergence of big data and artificial intelligence (AI) as transformative forces reshaping industry, governance, and society. It begins by clarifying the fundamental concepts of big data—characterized by volume, variety, and velocity—and AI, particularly emphasizing machine learning and its applications. The paper highlights how South Korea utilizes these technologies in initiatives such as smart cities, illustrating both opportunities and challenges. While big data and AI enable predictive analytics, enhanced decision-making, and urban management, the study cautions against blind reliance on algorithms that may reinforce bias and inequality. Ethical considerations, data literacy, and human oversight are highlighted as essential components in harnessing these technologies responsibly. Ultimately, this paper argues that the true value of big data and AI lies not in the data itself, but in how responsibly it is converted into actionable insights, underlining the importance of human wisdom in the digital age.