My impression is that materialism has modernized to the point where the aesthetics of status has almost totally eclipsed other measures of human well-being in popular perceptions. So, to reference your analogical "fat kid," the kid is not only eating too many candy bars, s/he also requires a whole slew of medicines, activity-regimes, and therapy to deal with the side-effects of all the sugar and other empty calories. Sure, the end result is a healthy-looking kid - but similar results could have been achieved with a much simpler life that required much lower levels of consumption in the first place. The only reason why economic "recession" has made people look unhealthy is because they are suffering from various forms of materialist withdrawal that manifests in psychological and even some physiological symptoms. If people would earnestly develop lifestyle patterns that were simple yet healthy, they would find themselves very happy with relatively little. They've just been programmed to interpret budgeting as hell, so they're screaming and searching for more money to avoid doing the real work of figuring out ways of enjoying their lives constructively with lower levels of (income-producing) economic activity.