Wei Zexi was a 21-year-old college student diagnosed with cancer. The Baidu (百度) search led Wei to treatment at the Second Hospital of Beijing Armed Police Corps, which turned out to be unsuccessful. The hospital claimed that the treatment was based on collaboration with the Stanford medical school, which was later reported to be a lie. Controversy falls on allowing companies who pay more to appear high on search result rankings, even when such companies may not be qualified to provide the service…