that just proves that others are spending money on worthless fb ad campaigns.
i used facebook ads for a couple of months last year for a new small business - complete waste of money. despite targeting the ads at the UK many of the site hits actually came from outside Europe, from Peru and Mongolia etc. and miraculously the daily budget was always consumed to the penny.
Google ads, on the other hand, are fair, work well and generate real enquiries and revenue.
Facebook 'like' adverts tested with VirtualBagel experiment
http://www.bbc.co.uk/news/technology-18822971