The life-expectancy of these countries is irrelavent to skilled immigrants or skilled temporary workers. They won't be drinking the tap-water or partaking in really ANY of the activities that expose enough of that nation's poor to risk so as to bring down those averaged numbers.

Apologies that I did not zoom in enough to ascertain the true meaning of the graph, but still, women live longer than men in El Salvador, and life expectency has increased over the time period covered.

The gender ratio is close to even, it turns out. So that leaves violent crime and pollution, things abstracted/averaged life-expectancy numbers don't speak to, and one of which El Salvador has ... "addressed", granted in an incredibly inhumane and distasteful manner.