I believe the "how" is clever but that doesn't make it right.
I think there are more people responsible than just the CEO and other executives; executives wouldn't be writing the software, placing it under configuration control, testing it, fixing & retesting the code, and then releasing it for use in the cars -- probably an executive somewhere had to give final approval for the release, but there probably are a number of spots where
somebody could've said "are we doing the ethical thing? Didn't VW agree to these standards?"
It seems executives are trying to blame rogue software engineers & claiming no executive had a hand in it, which from my experience with software testing and configuration control is a hard sell as that would mean:
- willful ignorance on the part of executives OR
- software test results were falsified and/or were not given proper executive review
Take that opinion with a grain of salt, though, as I work in the nuclear power industry -- we are sticklers for software configuration control as the industry (utilities, regulatory authorities, and responsibility to the public) demands it; I don't know VW's procedures so maybe things are pretty lax over there, but that's difficult to imagine considering their worldwide manufacturing footprint and sales volume.
Reading one of these posts, I got the impression Ontario was going to order all affected VW diesels off the road immediately; that doesn't seem to be the case ... yet. From
this story, it appears that once the recall in Canada goes into effect -- and it's unknown when
that will be as they're still determining what different fixes need to be made for cars in different countries (which goes back to my 'clever' statement -- I get the impression the defeat device worked in
all countries and to undo this, there will be different solutions for the cars in different countries) -- at some point owners will have to prove the fix has been made in order to renew the registration as the province wants to enforce owners getting their car back into compliance. I think "the fix" is not just reprogramming the cars to delete the defeat device but to also make the necessary modifications to restore the advertised performance numbers (horsepower, torque, economy, etc).
There's no way to "protect shareholders" during a situation like this as the stock market is supply and demand, all I can say is that I hope you didn't bet all of your money on this one horse ... I'll note stock in the VW group is majority-controlled by two families, take that for what you will
Finally, there are lies, damn lies, and statistics.
The New York Times took a look at two different models and calculated that in the US you could claim the defeat device is responsible for the deaths of 40 - 106 people ... at one point they worded it as "at its upper range, isn’t far off from that caused by the G.M. defect." (that's 123 so far). Of note is that at the end of the article, a different scientist discusses that 2004 - 2009 NOX emissions dropped by 90% while the affected VW diesels comprise 1% of vehicles in the US -- his point being those cars have not single-handedly rolled-back the gains made in the past 10 years.