Yep, to businesses, workers are a commodity which are to be acquired for the least amount possible — just like materials or anything else on which their profits depend. Left unchecked, the laws of supply and demand will determine wages. In times of low unemployment, that's a good thing for workers because they'll be paid more.
We're at a time right now of worker shortages in almost all industries, so worker's wages are rising. Fast food restaurants are paying upwards of $15 an hour! Simple supply and demand economics at work.
At times of high unemployment when jobs are scarce, if we left it to the markets, without a minimum wage, businesses would pay slave wages. When that happens, workplace theft increases, as do thefts outside the workplace, burglaries, robberies, and muggings. Society as a whole suffers.