What happened to Don Revie when he broke the rules?
Nothing. Not a damned thing. Because at the time it was better for English football that he exist and command Leeds than it was for him not to.
Do you really think China gives a damn what the ITU does? They've ripped off every Western country that's done business with them. They've ripped off Japanese and German train design. They're ripped off architectural design. Spain, France, the UK, the US, Germany, Japan, South Korea, Russia, the Middle East, the list goes on. They literally have no scruples about biting the hand that feeds because they know there's not a damned thing anyone can do about it because in the end the companies are making too much short-term money off of China to worry about the long-term damage they are causing to their own businesses.
What makes you think a toothless limp-dicked organized full of aging blowhards that can't even agree on the shade of fucking blue all official ITU letterhead must be are going to be effective enough in stopping the monster industrial power of the world? Here's what happens:
ITU: You broke our rules. Please unban Skype.
China: Fuck you.
ITU: We asked nic---
China: Fuck you!
ITU: Don't make me complain to the US!
China: All foreign made telecoms equipment is banned from China. Foxconn is prohibited from doing business with any company which operates in the US or Europe. Furthermore, Foxconn is free to manufacture using designs from every company it holds as a client. We introduce to you the ChiPad, at the low-low price of $299.
HP, Apple, Cisco, Dell, Nokia and Microsoft: HOLY FUCKING SHIT. WHAT THE FUCK DID YOU DO TO US, ITU?
ITU: Uhmmm now let's not get too hasty... I think a Skype ban is perfectly acceptable in China!
China: Fuck you!
Barring the above, what else could the ITU do, conference China to death?