Many industries are forbidden, by law, from unpaid overtime. The law specifically exempts the software industry from this requirement. Like so many other things about the culture here, this issue seems to come down to the US being afraid of its own shadow. We're the greatest country on Earth... we say so all the time. But to change the law and forbid unpaid overtime for the software industry, something that will make people's lives better here in the greatest country on Earth, is to risk losing all these programmers jobs overseas. A terrifying prospect. So we do nothing out of fear.