At Stanford University, where I am a senior, tech chief executives are something like rock stars. When the Nvidia founder Jensen Huang showed up to give a guest lecture late last month, students mobbed him. They offered up their laptops and personal workstations, desperate for a signature from a kingpin of the artificial intelligence era. Last year, speaking to the same class, Mr. Huang gave out shining $4,000 graphic cards with his name autographed in gold ink — the ultimate dorm room status symbol.Stanford has always been a haven for aspiring techies, but recent events have taken the school into...