Earlier quoted context omitted.
The fact that selling such a thing is profitable means that we lack regulations somewhere.
The fact something is profitable (even vices) does not mean it requires regulations, unless the regulation in mind is direct or indirect cap on profit margins?
I believe that we as a society don't want e-waste (at least I don't). And when the society does not want something profitable to be done, it sets regulations.
If it wasn't illegal to steal your neighbour's car and sell it, then it would be profitable. But we as a society don't want it to happen.