Imagine this:
person A has no money and is working 50% of his time to get paycheck, rest of his time he uses to sleep and be with family. 100% time used
person B has money, and can hire other people to do job instead of him , and he gets his own cut, therefore, he earns money without wasting time to do so, allowing him to spread his business more and more, earning more, and with no time wasted on actually doing anything.
there's also a word for this ; modern slavery.
People are being paid to do the work, they are not being forced to do the work, they can leave their job at any point, and usually they are actually very desperately wanting to have the work to do.
This is debatable. People ARE forced to work to earn wages which are a requisite to survive in a capitalist system.