If I care about what I do - I will do it anyways. I don't need to be an employee and go to work, just to be allowed to do what I already want and am doing. Does this make sense to you?
In the end I'm pursuing employment to get paid, you know, and there are only degrees of alignment between a person's current aspirations and the stuff you're going to be paid for. So, what people are trying to argue here is the balance between the time you are required to sacrifice in order to earn enough for a half-decent living and the free-will time in which your actions are motivated otherwise.
Like you once said - it's nice to be in a position where people can't exert leverage on you.
There certainly is a social and political push to this balance towards devoting yourself more to the company's agenda.