In a smaller sense, now that he had familiarized himself with these police officers, Chris was certainly harboring resentment in secret, and who knows, he might retaliate against the police later; in a larger sense, this was also unfit for Chris's rule.
If the Thirteen District Police Station suffered from dissent and moral disintegration, then the security level of the Thirteen District would decline, and in the end, it's the ordinary people who would suffer.
Just because he personally disliked Chris wouldn't make Wolf want to cause trouble for the Thirteen District.
At most, he would be subjected to some cold shoulders, but having been a police officer for almost twenty years, Wolf certainly wasn't devoid of the courage to handle even that.
At this time, Wolf also saw the message that Jiang Shu sent him.