The cause of decency -- specifically, finding limits to what the entertainment world will do for the sake of ratings -- needs an advocate wherever it can be found. But it is a bit strange to see it coming from inside CBS, from "60 Minutes." The other day, reporter Lesley Stahl was profiling the France family that operates the massive sports business of NASCAR racing, and she was outraged. Her primary moral objection was any lack of limits to who sponsors the cars. "A NASCAR race is a constant blur of corporate logos, hawking everything from beer to booze, soldiers...