by replacing a cable instead of taking apart your iphone and soldering the chip in the phone when an electrical spike comes through from your open contact getting water on it. but you're asking about throughput. the reason active cables exist is because the amount of interference in a cable varies - that little sheath of tin foil in a lightning cable does almost nothing. you need an axial cable for that - which is what ethernet uses for passive direct connection. it's as thick as the coax cable for your tv antenna. your idea I guess is to plug in that thick non-bendable cable into your phone? or is it to put that chip into every usb-A power source in the world? or is it to only use approved apple usb power supplies - instead of the millions of plugs out there at airports, hotels, laptops, existing ac/dc converters from hundreds of vendors? so which of these is your plan instead of the chip in the cable?

I know, I know, usb cables don't need a chip inside, why does lightning. because usb cables are a useless random mess. lightning cables are not - they run at the guaranteed speed, they charge at the guaranteed watts, and they have no issues with shorts despite having contacts exposed and reversible, unlike usb. and usb-C? well, there are active cables available for that, which tackle the issues described with a chip in the cable. just like lightning does.