The Free Software Movement and the Open Source Movement are part of a single community but we disagree on the fundamental issues. In the Free Software Movement, our goal is to be free to live an ethical life where we can cooperate with other people. We appeal to these ethical and political values as well as to practical benefits. The Open Source Movement denounces the Free Software Movement's ideals and values. It claims it is "apolitical" and cites practical professional values, such as developing powerful, reliable software. Those are the same goals that Microsoft claims it is going to achieve; the Open Source movement disagrees with Microsoft only in regard to how to best achieve the goals. At this basic level, we in the Free Software Movement disagrees with both of them.
A non-free program is a predatory social system that keeps people in a state of domination and division, and uses the spoils to dominate more. It may seem like a profitable option to become one of the emperor's lieutenants, but ultimately the ethical thing to do is to resist the system and put an end to it.