The Conflict between Producer and Consumer
For employees, as a producer of labor, they want high wages. But employers (as consumers of employees’ labor) want low wages so that they can cut cost. However, the employees themselves are also consumer when they want to make purchases. As consumers, these employees want low prices of products and services, which translate into why employers need to cut cost.
Funny irony, but this is what happens when the role of consumer and producer is split, which is brought about by Industralization. Coupled with the fact that we play both roles (of consumer and producer) at different times, and this causes such self-contractions. Too many people wants to have their cakes and eat it.