Apparently safety is for sale.
Just to play devil's advocate:
Safety is, and always has been, and in many cases should be, for sale. Ask a structural engineer. How do they decide how strong to build a bridge? They follow building codes, but how were those decided? Over the years they evolved to where they are now: structural members are designed with specific, pre-decided factors of safety. I don't know the exact numbers, but say they are designed to be twice as strong as the calculated worse-case scenario. Have bridges ever collapsed? Yes. Extremely rarely, but yes. But people have died in bridge collapses, so should they reform the building codes? Should they just get rid of all risk and build them with a factor of safety of 8, or 10, or 100? (And while they're at it, build some wings and fuselages out of the black-box material, and then add four engines for the extra weight...) Also why not replace bridges every 10 years too, since aging concrete and steel wears down? Well, because of cost. Every day, decisions are made where lives are risked because of money. Small and (coldly) calculated risks? Sure. But risked nonetheless.
Now, I am well aware that my analogy isn't perfect, but I try to look at this from that point of view--you know, the non-pilot one. Part 121 air travel in the industrialized world has fatality rates about the same as travel on escalators. Impartial observers may decide that it is not worth billions to improve safety by 0.001% or less.
Don't get me wrong, as a regional airline pilot, I very much want these new rest rules to pass. I'm just sayin'.