Yes, but these were three staff who work with infectious diseases and so would not be expected to use hospital resources frivolously. In fact, they would be considered shirkers to do so for a cold. If a doctor at a hospital needs an aspirin he merely takes it - he doesn't check into the hospital, take a bed, etc.
As for the cultural attitudes over doing this in Chinese virology labs, neither of us has any data for it to be any different from the general population. Personally if I had such a job and I was in a country where such a thing was normal I would do it.
Don't forget, for example, social pressure from friends and family.