Not disagreeing that washing takes time or the risks are small in the supermarket. But using an alcohol foam/gel would not be onerous or difficult before gloving.
So your initial thought that they have been handling raw chicken because they are wearing gloves is a sad indictment of the supermarket process in that you have become conditioned to connecting the wearing of gloves with said handling rather than it should be a sign that a supermarket employee is changing and using gloves properly. Obviously then this means that supermarkets have failed to ensure safe and proper food handling processes to engender that perception.