Together with Brazil’s Dilma Rousseff and Argentina’s Cristina Fernandez, Bachelet embodied the major strides made by women across a region that has passed laws deterring rampant violence against women and set quotas for political participation that have given Latin American women a bigger share of parliamentary seats than in Europe. But now some worry that progress on women’s rights could stall. “We’re seeing a shift to conservative politics that is questioning the advances of the last 15 to 20 years,” said Eugenia Piza-Lopez, who works on gender in Latin America for the United Nations Development Program.