Senator Bong, of course, knew that he could hire people to do this job. There were people who could do a better job than his son, and he can very much afford their services.
He could, but he didn't. After the dinner, last weekend, the leaders of the family strictly told him to not make any moves to which he nodded and agreed, but inside, he already came up with a plan.
His son has made countless clubs close down which is why he chose him to do the job. If the family ever suspects him and comes knocking on his front door, he'll just tell them that he had nothing to do with it, and it was all done by his son.
For him, it sounded more concrete than saying things like, 'I don't know who hired those gangs' or 'I didn't send them to do all those things.'
However, he didn't expect his son to actually pull off something like this.
