Corporate leaders must build international organizations to compete in today’s economy and be prepared to defend globalization at home, according to Klaus Kleinfeld, chief executive of the German electrical and engineering conglomerate Siemens AG. Speaking at a recent Wharton Leadership Lecture, Kleinfeld said U.S. concerns about the sale of port assets to a Dubai-based firm, and French resistance to the sale of yogurt-maker Danone — which French officials called a “national treasure” — highlight growing fears that globalization comes at the cost of jobs in developed countries. Those fears could spark a backlash against globalism and limit future economic growth, he warned. “The common people — the voters — do not understand what’s going on and see a threat,” said Kleinfeld.…