It should also be painfully obvious that, during those times, the alternative — subsistence agriculture — was much worse, and people working in factories no longer starved. The industrial revolution, AKA "greed", has ended starvation and slavery, so when socialists of late 1800s or early 1900s talk of exploitation, that should raise an eyebrow.
Unions are not similar to companies because they don't compete on the free market. For this reason, much like all state-funded institutions, unions are much more prone to corruption.
Unions are not similar to companies because they don't compete on the free market. For this reason, much like all state-funded institutions, unions are much more prone to corruption.