It’s always nice to put a face with a name. That’s why it was particularly fascinating to hear Alibaba Group Holding Chief Executive Jack Ma speak in person last week at The Wall Street Journal’s “D9: All Things Digital” conference in Southern California. The founder of a group of Web companies in China is truly a visionary who is much more than an Internet mogul. He sees himself and his companies playing a critical role in helping Chinese citizens participate in the modern economy by providing credit history and access to goods and services. Ma told the folks in the audience that he is often asked why he puts in so many hours on planes and at the office despite his substantial financial means. “I don’t have to work so hard, [but] we are changing China,” he says. “It’s not how much money you make, it’s how you change society.”