How was Qin Shi Huangdi a mean ruler?

Qin Shi Huangdi thought that his changes made life better. Many people didn't like his ideas though, like burning books, so no one could read what they contain and get ideas to threaten Qin Shi Huangdi's power. He also made scholars turn in their books, but any scholar who didn't listen to him would be killed or punished.Qin Shi Huangdi had 460 scholars picked up and burned. Qin would send some scholars occasionally  to help build the great wall, to scare people.He also ordered thousands of prisoners,and other people, to build a HUGE tomb. Archaeologists believe that he also killed all the workers in the tomb, so they wouldn't give away the location of it.