Earlier quoted context omitted.
There should be some executives losing their jobs and freedom, if this guy is pleading guilty to several felonies. He wasn't acting on his own initiative.
Just to play devil's advocate, maybe the requirements really are way over the line. In that case I wouldn't hold any grudges. Just because something is classified a felony doesn't mean it's morally wrong. Edit: To clarify, I'm not suggesting this guy taking the dive for the execs is ok, just that someone lying about emission test results may not be as horrible as they're trying to make it sound.
I think it's the tension between emissions requirements and customer demand for powerful vehicles. As allowable emissions decrease over the years, which automaker will be successful shipping a vehicle that has less power than the previous model?
And that's the whole reason for emissions requirements, left to their own devices, automakers and customers weren't getting it done.