Software companies are making huge profits with this restricitve practice. If we allow the transfer of legally owned software licences then the public sector, the private sector and the general population would save significant amounts of money and the software companies would have to work a bit harder for their profits.
If I buy a book, I buy paper, cardboard and ink plus a licence to read it an unlimited number of times. When I don't want it any more I can sell it on an auction website and transfer the licence.
When I buy software I cannot transfer it in the same way and many times I cannot even transfer it to other computers that I own.
The UK law should be changed to allow software licences to be transferrable – just like books!