There are many disadvantages in living in a Third World country, especially the large cities.
Economic issues typically overshadow political and cultural issues. This is why poor countries are losing their cultural identity. Whether it's Cairo or Bombay or Mexico City or Jakarta or Lagos: big cities of poor countries everywhere around the world feel the same: chaotic traffic, choking pollution, and a populace where everybody's primary concern is to find some money. More than 95 percent of the people in such places have a hard time to make ends meet.
A very hard time, indeed.
Under such circumstances, everything becomes negotiable. Crime is rampant. But not only this.
The borderline between what is criminal and what is just street-smart becomes murky. The willingness to cheat (provided there is little danger of being caught) is widespread even among those who certainly do not consider themselves criminals.
So, what you get is widespread corruption among government officials (and not only among them), and overcharging for all kind of services (if you have a buyer who doesn't know, which may be a newcomer from the countryside, or a foreign tourist, or whoever.)
So, why live in a large Third World city?
In a poor Third World city, which typically also is poorly policed, morals and traditional restrictions on a person's behavior are bound to gradually be lost. What counts is the economic bottom line. And this means, among other aspects of life, that female partner choice is much more guided by economic consideration than it would be the case in a rich First World society.
In a rich First World society, it would be seen as proof of a poor character if the partner choice of a young attractive woman were primarily determined by how rich a man is. Young attractive women in a rich First World society may still fall for the Ferrari guy. But they won't admit, not even to themselves, that they are drawn by a man's wealth.
No such scruples in a poor Third World city. In poor Third World cities, girls who choose a man for his attractive appearance, or his charm, or even his education, are considered stupid.
The most important aspect is: does he have the means?
The means, not just to support a family or household; but also, the means to provide financial support during a temporary relationship.