Stuart and Stephanie Mills have launched Wealth With a Why — a guide for investors and advisers who want their money to line up with their values, and to play a meaningful role in a sustainable future. The central question is beautifully simple: “Can I do better with my money?” And the answer, unsurprisingly, is…

It may not look like much, but to me this is the most perfect exhibit in London’s Science Museum: This modest bar, about 25cm long, is displayed recessed in a bench seat. Thousands of people sit on it every year, without much thought to its significance, I suspect. That’s actually quite understandable, because it is surrounded…