How so? I'm not convinced the leaders of rich countries think much beyond their next re-election, and whilst there may be some benefit to having cheap labour, y

How so? I'm not convinced the leaders of rich countries think much beyond their next re-election, and whilst there may be some benefit to having cheap labour, you need a reasonable infrastructure in place to take advantage of that. You can't run a factory if you don't have a reliable power supply, for example.