Gonna have to agree with Conquest on this one.

By no means does "working hard" always get you more money.

The idea of capitalism is that the business owners decide the amount of which they sell as well as pay their employees.

Sure, there are some restrictions like minimum wage that prevent business owners from just straight up screwing over their employees but they still have most of the say in how much their employees make and that doesn't always mean they'll be fair.