A person dominated by material strivings is anything but free. Become a master of yourself. It is this ability to rise above our physical selves that demarcates the difference between humans and animals. The story is told of the Baal Shem Tov looking at his neighbor eating dinner and instead of a person, seeing the form of an ox. The man was solely in pursuit of physical pleasure, no different than an animal.
Freedom is the ability to put our soul in control.
The one who can subdue his personal inclination. The same is true with our spiritual yearning to do the right thing. Although it might be buried inside, we can search for it, find it and the prize is pure freedom. Abraham would invite idolatrous wayfarers into his tent for a hearty meal, and then tell them the price of admission is to bless G-d. He was a social outcast and a lone voice in the wilderness.