Chen Ailian, who has been dubbed as China’s Wheel Queen with a net worth of 11 billion yuan (US$1.6 billion), has trended on mainland social media as an encouraging role model. Four decades ago, she defied gender stereotypes by driving a tractor. As her enterprise in the east of the country grew into a success, Chen rewarded her key employees with 100 BMW cars, the news portal Sina.com reported.