It's clear that other problems such as religious fundamentalism, overpopulation, damage to the environment, and the domination of business over government, science, thought, and society, are much bigger than non-free software. But many other people are already working on them, and I don't have any great aptitude or ideas for how to address them. So it seems best for me to keep working on the issue of free software. Besides, free software does counter one aspect of business domination of society.