Five years after pledging to promote more women to leadership roles without using legal quotas, Siemens AG is fighting a losing battle. The only two female management board members at Germany’s largest engineering company have departed after an overhaul, leaving the highest-ranking woman the sole female among 17 divisional heads…Deutsche Lufthansa AG’s Chief Financial Officer Simone Menne remains the only female CFO or chief executive of a company in Germany’s benchmark DAX Index…Policies that encourage mothers to stay at home and take part-time employment, a school system with irregular hours, and a culture that preserves the traditional role of the male earner inhibit women pursuing careers in Germany. Legislation would force cultural change…