By executive do they mean big co executive? The pattern with most regulators & prosecutors is they go after the easy to prosecute. If your hard to prosecute then they stop doing it because it doesn't look good for their career numbers.
I'm not so sure it applies in this case as I don't really see the corp in question as being big (relatively speaking).
To your point, this is basically what the book covers. It is the logical conclusion of both fiduciary duty and the overwhelming effect that strong legal representation has on the justice system. At this extreme, the legal representation outright prevents prosecution instead of simply affecting the outcome.