Free Offers

Sometimes I wonder,how is it possible for people and they click those ads who say "click here and earn 1000$".Or "click here and download this great software for free".Why would somebody pay all those money to Google Adwords or other similar companies just to say to the public:come here and download this software.Internet has become so dirty.Everything is about money!Everybody or at least most of the people is trying to sell something and they don't hesitate to lie in order to achieve their goal.Everywhere I go I see scams and lies.Some people may say that's the human nature,but is this true?What have we become?