Employees are only brought in for one reason - because there are only so many hours in a day, and the people who own the intellectual and/or physical capital can only trade in so many of their hours in a day for dollars. So an efficency is gained by someone who can do something better/faster/cheaper, or at least close to equally, but it is still that they are brought in to leverage their skills to expand profit for someone else. The only way to expand their profits and total capital/business presence is to leverage others' labor.
There is nothing inherently wrong or right about this, it is what it is. It is a neutral point. It is indeed exploitative, because the employer is looking to extract max value for THEIR profit off of someone else's skill. But it is also a trade of value for value, agreed upon, thus it is neutral, and NOT something that is inherently negative. Slave labor is negative, IMO offshoring to a far lower cost area is negative. Trade of hours for dollars just is what it is.
But let's face it, "efficiency" is when all the available work is performed with the minimal number of employees, or more specifically, minimal number of burdened man-hours.
The employer isnt paying wages to be generous, even if the owner isnt taking a wage in order to pay employees. Let's face it, nobody is in business for the good of others, including the employees. Then it would be charity. They are in business for the long run creation of business value and profit for themselves, or in the case of a corporation with shareholders, for the shareholders.
The employee has vested interest in the business succeeding, because it assures a paycheck, and IF there is a profit sharing program, then some ownership in the long-term valuation of the business. If there is no employee ownership, it is purely to have an assured paycheck and hopefully a rise time to time. There is no benefit to the employee to have an increased business valuation, because it will never increase or effect the employees' net worth.
But these things are all just what they are. Its all fairly neutral, unless one cares to make it adversarial. The reality is that these days there is enough mobility and enough opportunity from area to area to make something of ones self no matter what. Jobs are finite, indeed. But it doesnt mean that there is no opportunity. Sure, nobody is going to create a B&M discount chain in their garage that competes with walmart, but there are tons of other opportunities.
The funny thing is that it becomes adversarial because the employees and the small business owners all spout rhetoric and are pawns of the greater injustice being done to all.