In the developed world (esp. the US), the hammer and sickle, symbols of labor, are not actually used that widely anymore. Industrial monocrop mechanised agriculture and assembly-line manufacturing processes, as well as the use of robotics means most workers are no longer swinging a hammer or sickle as they produce goods, such as food, for the society. tl;dr: As manual labor has changed in the US & developed countries, does this well-recognized Communist symbol need updating?
Empowering symbols for service/retail work might be hands.
Two right hands: one palms out, fingers pointed up, (like the 'stop' gesture) ; refusing service. one palms out, fingers pointed down; giving, partaking in transaction