Integrating Sustainability into Marketing Strategies: Implications for Collective and Individual Well-Being

Modern businesses increasingly embed sustainability into core marketing strategies to advance organizational success and societal welfare. This paper synthesizes Triple Bottom Line, stakeholder theory, consumer well-being, and ethical consumption literature to explain how sustainable marketing enhances individual outcomes (trust, responsible behavior, happiness) and collective outcomes (environmental quality, social equity). Focusing on evidence from fashion and related sectors, we identify research gaps, develop a conceptual framework, and outline a qualitative–conceptual methodology. We argue that authenticity, transparency, circular design, and purpose-led narratives strengthen trust and loyalty, normalize responsible consumption, and contribute to societal welfare. Managerial and policy implications emphasize credible claims, traceability, consumer education, anti‑greenwashing enforcement, and enabling infrastructure. We conclude with limitations and an agenda for empirical validation.