If I can add to that, this is high stakes for Hong Kong and for China. They've picked on the biggest fish they could find. They're not the wealthiest, as there are wealthier.
As Sébastien says, there are wealthier men in Hong Kong whom they didn't need to pick on because they had already kowtowed to the Chinese government, but this is a man who embodied independence and the independent spirit, as well as the freedoms of speech and protest. They found them all encapsulated in this one extraordinary man, and they recognized that if they could successfully target him with a national security law, it would send a very powerful message to all sorts of corners of Hong Kong: those people who might want to speak freely, those people who might want to trade freely and those people who might want to protest peacefully. All of these things that he did, they can crush in one go.
As you know, the national security law has a 100% conviction rate, so they can be fairly sure that they will succeed—and they inevitably will. The reason for targeting him with the national security law.... Don't forget they've already targeted him and convicted him for offences under the Basic Law, like peaceful protest-type offences and free speech-type offences.
They introduced the national security law in 2020 in order to be able to infer that someone like Jimmy Lai presents a threat to national security. Nothing could be further from the truth.
Jimmy Lai was standing up for the national security of Hong Kong. He was not a radical. He was seeking to maintain the status quo. The radicals are the Chinese authoritarians creeping in from the north. They want to change the way of life in Hong Kong—not someone like Jimmy Lai. That's why the national security law is so pernicious and that's why they've targeted him with it.