In Brazil it worked out in a similar fashion: poor people would seek for aluminum cans inside garbage and then sell it for recycling companies. So it was a cheap source of aluminum, companies would get enough profit to continue in business, and some people made a living out of it.

After some while, giving more marketing about "going green" and calculating that money was being throw at the garbage, some stores like restaurants and supermarkets began to collect those aluminum cans. Profit for then, recycling still being profitable to companies, poor people lost this income they have fomented.