Last week I went on a tour of an old coal mine in Pennsylvania. While waiting for the tour they played a video about the labor movement at the beginning of the 20th century and many of the strikes for workers' rights.
One of the objections the coal mine owners raised against better worker treatment is that it would force them to raise prices and thus hurt the economy. Of course that is the same garbage we hear from people against better worker treatment even today.
Never mind that workers are human beings, or that not all costs in capitalist production are labor, or that the owners are pretending their own massive profits either don't exist or must not be reduced.