Only allowing the brightest and best filters out those immigrants that come here to work in the care sector etc etc
I had an interesting chat with an IOM Immigration officer on friday and he said that Pinoys "generally make good immigrants" (many of which work in the care sector here). Apart from UK and Irish folk migrating here there are few migrants and very few here from outside the EU with the exception of Pinoys.
The IOM likes Pinoy immigrants and evidently selectively admits them, it would seem.