His advocation of the Amber Alert is perhaps well-intentioned, but the way he approached it and the timing of his comments, seem to be as hollow as his (and Mrs. Smart's) lack of common sense of hiring people from the streets to come to their home. They have to accept they made their own mistakes in this, not just the investigators.
He is a leftie trying to score political points against conservatives and Republicans on the back of his kidnapped daughter. He may also think he can make a future "John Walsh" tv deal out of this thing. I wouldn't urinate on him if he were on fire. He thinks his "If any more children are kidnapped it will be the fault of the Republicans" will get him some personal traction.
Your point that he and his wife hire people off the books to avoid having to pay them minimum wage or SS benefits is just further proof of how shallow he is. The only one at fault for his daughter's kidnapping is the kidnapper. Providing she didn't run away from home to get away from that creep,that is.