First is a social goal: to give people (including the software's own developers!) a choice so that they can choose to use free software instead of proprietary software, when they cannot afford proprietary software or when the proprietary vendor exercises too much control over the user's rights.
Second is a practical goal: to convince enough people, through the merits of the software and the developers who work on it, that investing their time and money in the development of free software is worthwhile and will provide a greater return to them than paying for proprietary software.
Neither of these goals is about control, though some confused people attempt to use the foundations of free software to further their personal goals of coercion.
Score:4, Insightful