Am I sure someone is asking this question in earnest? That is TV. Is someone really concerned with a truth as shown on TV? I suppose it is true that people really watch that stuff and care what it shows.
For the TV crowd. Dumps are not the end of articles. In most cases they are the second beginnings. In Mexico City or Mexico DF there is a dump that houses an estimated 200 thousand souls. Just think on that. Dumps may be disgusting to many but they are a livelihood for others. Nothing dumped in a dump is a one shot deal, it is scavenged.
I patrolled once near a dump and the folks there actually shot at poachers in the night. And that is in the USA.
If you want to save some environment, throw your recycled out with your standard garbage and save the environment of the beggar/homeless. Some rely on digging through your garbage to make a living.
But do not tell this to the TV crowd or those who make corporate money through our fake recycling.