Musicians have developed their own system to get continuous income (royalty), and also it can be used universally, but designers have very weak guidance.You think is it impossible to make similar kind of system like music industry in design world?
music industry is also facing a threat these days. But I think this doesn't change the royalty system, because they have regulations, global unions...and so on.
Why designers cannot make this kind of regulation? Because distinct characteristics of design area? Or designers' special personality to avoid to muster?