I've spent a little time in Northern Iraq and war torn Northeast Syria (Kurdish areas). You can, and I have seen people leave thousands of USD in the street and no one will touch it. That's a ~year wages in the area. Crime exists but you can hand almost anyone a year's wages worth of stuff and be sure they won't steal it, even if they badly need it.

You can call it religion, you can call it culture, you can call it fear of choppy choppy of the hand, or maybe the fact everyone and their brother has a full auto AK, but there's something on a whole other level happening with poor (and also rich thieves) people in much of Africa.