This paper addresses the intricate challenge of establishing social discount rates across far-reaching generations, particularly in the face of divergent social viewpoints. We propose a principle of future-improved unilateral dominance to characterize social discount rates. Despite its divergence from traditional principles, our principle prioritizes the welfare of distant generations, resonating with a minority concern within society. Our findings indicate that society adhering to this principle exhibit greater patience and future-oriented concern than any individual. TThis approach, contingent upon the preferences of current generations, offers theoretical pathways to enhance considerations for the welfare of the distant future in the context of long-term environmental projects or activities.