It matters because UK citizens should have confidence that personal information submitted to a government department is only accessible to Statutory Bodies. It is essential that citizens have confidence that the Data Protection Act is there to protect them and that government departments are not exempt from the act. It is a breach of Human Rights that Personal security and freedom is put at risk by addresses being given out freely to anyone who pays.
Where does this stop? Which body is next to sell information? The police? Inland Revenue? In a time of austerity departments could raise a lot of money selling personal information and I am sure there are countries where it happens. The UK government probably condems them for such breaches of human rights!