@chrisblake Yes, in any poor communities there'll be unrepresentative exceptions, a minority lucky enough to escape their circumstances and do well despite the odds. That isn't an argument in favour of the environment.
Which central American and south Asian countries are we talking about specifically?
@hughster The people I mainly had in mind are from Belize and Nepal. Note, though, that I never said the people I was referring to grew up in and had to "escape" poverty; that was an assumption you made. I just said they grew up in villages and didn't have cars. The former came from a family that would probably be considered middle-income by her home country's standards and apparently had a reasonably comfortable upbringing there, but was not affluent by "first world" standards.