Different projects call for different standards of quality. A Christmas promotion might as well be spaghetti code if that's what it takes to get it out the door

Different projects call for different standards of quality. A Christmas promotion might as well be spaghetti code if that's what it takes to get it out the door in time, but if you're doing say an RTOS or a foundation library then you'd better take the time to do it the right way and respect the craft.