The past decade has witnessed the most serious global economic crisis in the last half century, causing great sufferings among the public. Income inequality has also been worsening in most countries in the last few decades. There is an urge from the public for economics and economists to provide more informed discussions or even an activist role in leading to more equitable and secure society. This talk discusses to what extent such an urge is justified and to what extent it is not. It ends with some reflections on some of the predictions John Maynard Keynes made in his talk “Economic Possibilities of Our Grandchildren”.