How businesses should engage with social issues has long been a subject of debate. At one end of the spectrum are those who think businesses have a duty to engage in social issues. At the other end are those who think that businesses should just worry about making money. Jason Saul in his new book “Social Innovation Inc: 5 Strategies for driving business growth through social change” argues that both are possible. But it will require transforming the way most businesses think about social change.