We have all experienced moments when we wanted more than anything to “keep up with the Joneses.” This comparison trap is nothing new—our parents dealt with it, their parents dealt with it, and so on and so forth. The only difference? Fifty years ago, the “Joneses” were just the folks down the street. Now, social media lets us keep tabs on hundreds of Joneses from all over the world—morning, noon, and night. This kind of exposure to the lives of others can allow a constant yearning for what we...