That isn't capitalism. Capitalism says nothing about how many hours to work or freedom. Capitalism is an amoral system. Neither inherently good or bad. It's about power and who gets to wield it. In monarchic systems, the monarch has the power. In capitalist societies, the ones who control capital ( bankers and now primarily central bankers ) control power.
Your example of "financial incentive to not overwork employees" is historically and economically inaccurate. Capitalistic societies overworked their employees because it is in the amoral interest of capital to extract the most value from a resource. It's okay in capitalist society to overwork employees ( even to death ), employee children ( child coal miners ) and even drug millions of people ( chinese opium wars ) in order to accumulate capital.
Your other example workers getting the choice of the best opportunities between two firms is also false. It makes "capitalistic" sense for the two firms to collude to keep wages, benefits, etc down. We had a big story about it yesterday.
"How Apple, Google, and other tech companies conspired against their own workers"
https://news.ycombinator.com/item?id=19666545
The point of capitalism is capital rules over the masses and that the goal of society is to accumulate the most capital. Whether it be by destroying the lives of millions or uplifting the lives of millions or whether it be by destroying the environment or protecting the environment is moot.