Pilots who are on regular rosters wouldn't want to max every 28 days whilst those on temp would fly as much as possible. Two different goals and therein lies the disunity. The danger is with the newer a/c like the A380. Planes can be made to fly farther and longer but the human body has not advanced much. Extra sets of crew can be put on board but I for one would not want to spend 14 hrs or more inside a tube, day in and day out.
There is no research done for this kind of extended time in the plane on a regular basis and based on my own experience in long haul, I know it will be very taxing. Personally, I wouldn't touch the blood money.