Yes, more executives should face criminal charges if they commit crimes. The lack of criminal charges resulting from the banking crisis show that many executives seem to be above the law. White-collar crime needs to be treated the same as blue-collar crime to prove that no one is above the law.
I strongly support that executives should face criminal charges. This is because they are normal human being like the rest of us. The law does not work that way, everyone faces the law despite their social status. Therefore, the F.BI were just doing their work by taking orders according to the law.
Executives in large corporations face very few consequences for their actions. They make millions, or even billions of dollars each year, yet if they are found guilty of crimes, often the corporation is held responsible, instead of the actual people in charge. The corporation pays a fine, but the executives still pay themselves millions of dollars, while lower-level workers, who already get paid peanuts compared to the higher-ups, foot the bill for the fine. Executives need to be held accountable for their unethical behavior, otherwise they will just keep doing it.
I think the key issue is how much the executives really know, if they know at all. In the case of VW then if they do know it is absolutely correct that they face criminal charges. That doesn't mean all executives should face charges as soon as something goes wrong within their company, it has to be relative to the situation. In this case it is good to see.