A picture is worth a thousand words. The sculpture outside the front of Tencents Shenzhen HQ. https://pbs.twimg.com/media/DXRIsWrVQAAJgjl.jpg
Also, it's possible that they believe it, say, "China needs this to be a strong country" even if some freedoms are sacrificed. A necessary evil for a while.
As for nationalizing: they are in a sense nationalized. You must x, y and z or you're done. The Party is judge, jury and the executioner.