You engineers are your own worst enemy as usual. You will never have properly regulated hours because too many of you are chasing only the dollar.
Military aircraft with a couple of souls sitting on bang seats does not compare to a 380 with 800 on board.
How do you marry "professional" with some of your colleagues attitude to working hours?
For fare paying passengers only the highest standards will do. As long as truck drivers hours are regulated and yours not, you remain well below what is required before you can call yourself professionals.