I heard a great comment on the Fragrant Harbour forum on this matter.
It went something along the lines of 'If we continually get told that our rosters are legal, even though they are fatiguing, perhaps we should apply the same principle to the way we operate the company airplanes. Gear down at limit speed minus 1 knot on every sector, take flaps at limit speeds minus 1 knot etc. After all, it is within limits, and perfectly legal.'
It goes without saying that the professionalism of the vast majority of us would prevent this from ever happening of course. But it would not be difficult to argue that crews have more concern for the well being of company airplanes than the company has for the well being of it's crews.