This month we meet businesses ranging from Patagonia to Pigeonly that have a social or environmental mission at their core – which in itself helps build market value. As Ayah Bdeir of littleBits points out, building a business with a social goal (in her case, to let anyone be an inventor) is wholly compatible with a focus on profit: “Making money is important,” she says. “Money is freedom for a company.” But purpose is what brings Google employees to take pay cuts to join, and what boosts morale during a startup’s stress points. If a company optimises for both, Bdeir says, “It feeds your head, heart and pocket. There’s no better way to live your life.” No wonder the WIRED team have been feeling particularly uplifted while preparing this edition.