Twenty years ago, Shamina Singh took what might seem like an unlikely leap from a decade-long career as a labor and political organizer into an executive position at one of the world’s biggest financial institutions. To Singh, this leap was a logical next step in her fight for equity and inclusion. She is now the co-founder and president of Mastercard’s Center for Inclusive Growth. The Center, which celebrated its 10th anniversary this spring, is the credit card giant’s social impact hub that...