For Joseph Nacchio, the former Qwest chief who went to jail for insider trading in the aftermath of the Enron bust, justice in civil court was swift and bittersweet. Nacchio won a $14.2 million insurance case verdict late last week against a Goldman Sachs Group Inc. unit, Ayco, and a financial adviser, David Weinstein, who helped convict him in 2007 of using confidential information to trade Qwest shares.