Why are complex, non-industrially produced items which interact with our day-to-day world in a significant way, and are quite inherently possessed of the abilit

Why are complex, non-industrially produced items which interact with our day-to-day world in a significant way, and are quite inherently possessed of the ability to kill human beings, which do own themselves (well, in most cases - but unfortunately not all) - somehow different? I mean - we've come up with solutions for those items - so why couldn't we do the same with industrially produced items which have the same characteristics you've posited?