As others have said here, it's all about education, changing attitudes and opportunity. The government here wants votes. They hand out little subsidies to appease the poor who keep coming back for more, ever dependent on the cynical system. There is no excuse for this poverty. Argentina has plenty of resources. The problem is the mentality of the people, reflected in the political leaders.
In reality, there are far, far worse places than Argentina but people in these worse off places survive, often without any help from the state. I've seen far worse poverty in places like India and Pakistan. People in those countries often take overseas guest worker jobs. Many go to Middle Eastern Gulf countries like Saudi Arabia, Kuwait or the United Arab Emirates where they earn a couple hundred dollars or less a month (living and working under oppressive conditions) so that they can remit most of it to the their families back home. If they could come to Argentina and have the opportunities that poor Argentines have they would be overjoyed. The poverty in Argentina has nothing to do with the US or any other first world country but everything to do with a culture that has created it.