it was always other people doing the inventing
True about all products. And yet, people write books about Steve Jobs and talk about all those company founders that developed nothing themselves except the very first version. Management is a crucial part of success.
That and your average electrical engineer will consider an LED useful that signals the device has power.
Most probably then don’t consider where the device is actually used. In a well-lit office space that LED doesn’t annoy anyone.
127.0.0.1 then?