It's like a mountain range: the base is rock-solid, but the peaks (in speed, power, capabilities, even length) are standing apart.
Maybe make their physical shapes different enough so that you can't connect things which fail catastrophically together?
But if you wan these top Mbps or W, or want 60 Hz 4k video, you may find out that not everything works with everything else, and proper cables play a crucial role, while being visually not distinctive at all.