They do straddle a line. It's the same line that ruin porn photographers face (though I think they have fewer scruples). Sometimes they are exploitative, but

They do straddle a line. It's the same line that ruin porn photographers face (though I think they have fewer scruples). Sometimes they are exploitative, but they are also being documentative (for example, the Dustbowl internal migrants captured by Lange, among others). If you go to Today's Russia or Ukraine, you will find very similar conditions, often captured by wealthier European photographers. Are they being exploitative, are they documenting. It depends on the photographer and how they approach it. You can still grant the subject respect and decency.