We develop a dynamic model of socially responsible investment where large households trade firm equity and vote on production decisions involving the depletion of a nonrenewable resource. Although accumulating wealth and exercising voice are intratemporal substitutes, they are dynamic complements because influence is tied to wealth. Socially responsible households delay implementing resource-preserving policies that reduce firm productivity to amass wealth for future influence, while financially-motivated households may accumulate wealth to block conservation efforts. The constrained efficient technological choice balances higher productivity with society’s willingness to pay for conservation, and can be implemented through a voting protocol that assigns voice based on how depletion impacts welfare rather than shareholdings.