Re: "China's government [..] is always enormously intolerant of corruption"
No, its not changed (unless its a very, very recent change) - backhanders all the way down when I was last chatting with friends who work heavily in China / with Chinese companies - they were still paying plenty of bribes in July (last time we chatted).
It's govt firmly letting big tech companies know that govt in charge.
As long as your corruption fits within state sanctioned corruption model (& the right people get their kickbacks) then business as usual .... except for occasional purges of someone high up & then their corruption / kickback chain either gets handed over to someone else or a persecution of the chain members occurs (when it can get nasty).
Biting the hand that feeds IT
