Yes, high skilled people produce more than they consume but that's of course a good thing. Look at it from the other way around. What would happen to the econo

Yes, high skilled people produce more than they consume but that's of course a good thing. Look at it from the other way around. What would happen to the economy if 50% of high skilled people moved to a different country? It would be disastrous for the country. So AS and AD go down as a direct consequence of those people leaving, but AD will also go down as a consequence of the resulting recession/depression. Importing high skilled people has the opposite effect. So yes, high skilled workers add to AS and to AD, and the ratio of AS to AD won't change much because of that. But the economy will still get a boost (another increase in AD).