It should be socially unacceptable to come to work with a cold or similarly contagious disease.
It should be socially unacceptable to make your workers come to work with a cold or similarly contagious disease.
It should be socially unacceptable to pay your employees so little that they have no choice but to come in with a cold or similarly contagious disease.
It should be socially unacceptable to get mad at service workers who are understaffed because their coworker stayed home with a cold or similarly contagious disease.