Yes, but if caught Mr. Rogue Employee Who Wants To Get Rich would now be facing federal felony charges (or state felony charges, if FedGov declines to prosecute

Yes, but if caught Mr. Rogue Employee Who Wants To Get Rich would now be facing federal felony charges (or state felony charges, if FedGov declines to prosecute). I suppose anything is possible, but Google employees in positions of high trust tend to be very well-compensated, and presumably the company has thought of this threat post-China intrusions and adopted the appropriate countermeasures. Also, as another comment points out, Google uses PFS, so Apple, Yahoo, Microsoft, etc. are better targets for this type of insider attack.