How about we listen to some experts on the topic? "And for the most part, countries have failed to work along those lines. So they are not leveraging on remittances. They are not leveraging on the skills obtained abroad. They are not leveraging on long term programs to make the country more competitive. For example, Bangladesh, uses almost labour migration as an escape valve, while it still continues to be a largely agricultural based economy, or an economy that is using free trade zones to focus on certain textile exports, but that require very limited labour." https://www.opendemocracy.net/en/podcasts/podcast-borders-belonging/migration-talent-global-south-brain-drain/