Would anticipating a return to a job paying salary of $3,000,000 a year affect your objectivity while working at another job?

Knowing a former employer held open a three-million-a-year job awaiting his return had no impact on the objectivity of at least one departed government worker.
10/16 – BoingBoing – Eric Holder: I didn’t prosecute bankers unrelated to my $3M/year law firm salary – Article points to the discussion in the next article.
Mr. Holder left a law firm where he was reportedly earning $3M a year to become the attorney general. After completing his government service, he returned to the law firm. Presumably his salary will resume or even increase since he now has humongous amounts of inside information on government strategy, capabilities, and intentions for enforcement of criminal law. That will be tremendously valuable knowledge for banks that find themselves talking to various US Attorneys in the near future.
One pertinent comment: …