Ben Franklin's biggest mistake

Why do people voluntary submit to the temporal shell game known as Daylight Saving Time? The number one reason that the Powers That Be cite is energy savings, but the evidence for this is inconclusive. In particular, the marginal benefit of extending the Daylight Saving period, as was done in the Energy Policy Act of 2005, seems negligible at best. It also seems rather half-hearted--if you're going to impose such madness, you might as well make all time Daylight Saving Time and maximize the "benefits."