I had a job wire-wrapping circuit boards in college.

I expended effort to lay out the wires so they formed a neat pattern. Why spend time doing that? It made it easy to check for errors in wiring, as then the pattern would be disrupted. The end result was I almost never made a wirewrap mistake, and the work was appreciated.

I also soldered components on, and also took care to orient the resisters all the same way, and align everything neatly. I'd use needle nose pliers to bend the leads just so, too. It also made visual error checking fast and easy. Again, no errors.

Which would all be very useful if Apple actually did board-level repairs and not logic board swaps. But they don't, so it is all just for show.