Picture a net stretched under a whole country. Most of the time nobody thinks about it. Then someone loses a job, or falls ill, or gets too old to work, and the net is what stops the fall — money while they look for work, a doctor they can afford, a pension. The net is paid for by everyone's tax, so it belongs to everyone and everyone argues about it. Once you can see the net, the second use follows on its own: a country can be named after the net it has.