The significant difficulty of moving country, such as leaving behind friends and family, and leaving behind an area (or even language) you know well, are likely to limit emigration. As for immigration, the skill set is typically already within the country; if not, this policy may encourage a focus on an educational system to ensure it is. Finally, if the argumentation about equality leading to a better and happier society is correct, this in itself will attract immigrants to high-paying jobs.