Exploitation of labour is wrong. 
First let us define 'exploitation of labor'.  i define it as treating your employees unfairly so that you can gain an unfair advantage over them.  My example here is UBER, which takes 50% of gross and leaves the drivers to pay for their own gas from what is left.
Indeed, Uber and other companies are certainly taking advantage and exploiting their employees. I despise it. We work hard enough for our money. 
ever since the labor organizing and sweatshops of the 1910's and 20's, there has been a fundamental power assemetry between owners and management, on the one hane, and loabor or employees on the other.
When I think of exploitation of labor, I also think of waitresses. As a waitress, I made $2.50 an hour plus tips. The problem with that is, the tips are pooled and split between the waitresses. Even if I did really good, it was split between us evenly.
Exploitation of labour
Exploitation of labour (or labor) is the act of treating one's workers unfairly for one's own benefit. It is a social relationship based on an asymmetry in a power relationship between workers and their employers. When speaking about exploitation, there is a direct affiliation with consumption in social theory and traditionally this would label exploitation as unfairly taking advantage of another person because of his or her inferior position, giving the exploiter the power.
Karl Marx, who is considered the most classical and influential theorist
from the workers, who can only bring their own labour power in the market. Once capitalists are able to pay the worker less than the value produced by their labour, surplus labour forms and this results in the capitalists' profits. This is what Marx meant by "surplus value", which he saw as "an exact expression for the degree of exploitation of labor-power by capital, or of the laborer by the capitalist". This profit is used to pay for overhead and personal consumption by the capitalist,