Upload & Sell: Off
Are there any unwritten rules about compensating street photography subjects, especially impoverished ones? I'm not saying my feeling is rational, or that you should feel the same way, but I would feel slightly guilty photographing impoverished people with my expensive camera gear without compensating them. It might be only a token amount, but something.
Speaking for myselve, first, I always show respect, as much as possible.
You can show respect in many ways. By learning the language ( a few words already make a difference !), by listening to their story, show interest, spend some time with them, socialize ... whenever possible.
Second, I rarely give money, but compensate for example by buying food, or buy something from them (jewelry for example), but I'll not actually take it with me, that way they can sell it twice.
Or I ask to guide me. Point is, that they should"work" for it, which is a healthy way of helping them.
Sometimes when it really get's to me, I just give some money.