You should not care how the assembly line works. But you have to understand how car works. How can you develop a better car if you don’t know what a car exactly is?

You like heard it is something that has wheels and can turn left or right and come out with stupid idea of a car with six wheels, one on each side, that makes random turns from time to time all by itself. And then there goes an unending stream of how ingenious you are and how you are really giving people what they want. Like as it could magically turn your six-wheeled car into some great device. And when you call engineers (metaphor for programmers here) and they laugh at your abomination of a car, you start calling them morons and say that you will find a PhD engineer who will add features on top of it! And of course although it is trivial to find out that 4 wheels are enough unless you want an all-road, and there is really no need to place a wheel on the roof, but no, you refuse to do that because you are no engineer! What a great approach, really.