General Motors is number thirteen on this year’s Fortune 500. That’s its lowest ranking ever. But, while revenue has fallen over the past year, the company’s become an undisputed leader of the auto industry by one metric: gender equity. Wondering what that means? Here are the most visible examples. First, women outnumber men on the GM board. This is a first for the auto industry. Just five companies on the 500 currently have a majority of women directors.