Everyone has to pick their battles. Sometimes they believe that it's not possible or practical to affect any meaningful amount of change. I can imagine trying to change an entire country as an individual can certainly feel that way. But sometimes people derive a great deal of meaning by fighting for things they believe in. And sometimes they win. I wouldn't be so quick to discount this impulse in people.
The problem with that approach is much as I think the politicians in the countries I have lived in are incompetent and corrupt, it is still significantly less corrupt that most of the countries in the world.
only it is economic power, contrary to the power of governments to apply any physical force necessary to make you comply with any rules it imposes on you.