“Herbert Quandt, who built BMW into what it is today, committed war crimes. So did Friedrich Flick, who came to control Daimler-Benz. Unlike Mr. Quandt, Mr. Flick was convicted at Nuremberg,” writes davidthejong. In a country that is celebrated for its culture of reckoning and remembrance, the richest families are often an exception. David de JongMr. de Jong is a former reporter for Bloomberg News and the author of “Nazi Billionaires: The Dark History of Germany’s Wealthiest Dynasties,” from which this essay is adapted.The backbone of Germany’s economy today is the car industry. It’s not just that it accounts for...