OK, I can pipe up about some things since I've lived in Third World countries before --- in African countries, and some in Asia.
There's a lot to say, but I want to comment on the security aspect of it. It's possible to be safe, but you need a different way of thinking.
The main thing is social relations. Social relations are more important in the Third World, as it's a way to have a system -- whereas in the West, we rely on sophisticated legal and codified social structures. You have to put your best public relations on and develop good relationships with people. The more "friends" you have, the better. If you are in a village or small town, and you have a lot of "friends" -- especially those perceived to be important -- you are less likely to be attacked.
And the other thing --- if you have some means --- you hire an army of security. There's a way to do this right, because if you do it wrong, you can just hire some hoodlums and that'd be counter-productive. BTW, it's not expensive to hire security in these areas.
So, there you are in a village or town in the Third World, and you are respected by a lot of important denizens there, and you have a security group. You are less likely to be attacked. Not only that, but your whole quality of life is a lot better than if you remained a foreigner hermit there.