The advisors that a govt chooses to listen to, you mean? Or are you saying all govt policy is based on great advisors?
Why would they not listen to the most qualified advisors they have?
If they get things wrong, perhaps millions of people will die, and not just coronavirus victims. Imagine needing life saving treatment but the hospital is full of coronavirus victims or the doctors are all unavailable because they are self isolating.
I can't see any way to gain political advantage from this except by doing the right thing. Even then, the government may be screwed because it could get really bad.
Let's turn it around. Do you know of any evidence that the Italian government is doing the right thing? They stopped sporting events a while ago and the virus is definitely not under control there.
ETA: When I say "do the right thing" I do not mean to imply that I know what the right thing is. At the moment, my feeling is that the government response is about right, but it is just a feeling.