I think categories 2, 3, and 4 most likely displace jobs
from Singaporean. Although 4 could be subjectives to
relevant professional experiences.
Categories 5,6,7,8 most likely contribute the most to Singapore
in terms of knowledge, industries, and consumption.
Categories 1 contributed to infrastructure and property
housing...etc.
Some foreigners in Cat 4,5,6,7,8....... due to work
will eventually settledown in Singapore and have kids. While
holding dual citizenship. SG Govt is creating a
generation of foreign 2nd generation Singapore born citizen. Or I
called it "Domestics Import Citizen"
The challenge i think is how does the govt incorporate the
Singapore experience with the foreign local born
citizen in Serving NS experience?
It is also to note that Singapore govt encourage overseas
singaporean not to forget Singapore. That is to say they want
overseas Singaporean to be internationalised as part of global
citizen eventually swim back to Singapore as their roots lies. The
composition make up of Singaporean will eventually not be limited
to Chinese, Indian, Malay, Eurasian, but Americas, anglo
saxon, Arab. latin..... etc.....