Civil Service runs the country and advises the political
appointees.
Who does the real leg work and grunt work? The Permanent Secs,
Directors and DDs of the Ministries. These are the policymakers.
Ministers come up the political direction based on their
input.
Singapore will not collapse overnight. The bureaucracy will keep on
ticking, and if these people are truly loyal to Singapore, they
will advise the new government in the same manner as they did with
the old. It's their profession, and they damned well do it.
As for the last point, I believe that we should move towards a
coalition government, and not another hegemonic, dominant party
system. Who knows if the next party that comes in will suppress
political opposition as well.