Sometimes setting yourself on fire sheds light on the situation

In today’s “so that is a thing that happened” column, found in a completely unrelated article (Still Alive):

In Street Fighter, the hero confronts the Big Bad about the time he destroyed her village. The Big Bad has destroyed so much stuff he doesn’t even remember: “For you, the day [I burned] your village was the most important day of your life. For me, it was Tuesday.”

…

In 2010, a corrupt policewoman demanded a bribe from impoverished pushcart vendor Mohammed Bouazizi. He couldn’t afford it. She confiscated his goods, insulted him, and (according to some sources) slapped him. He was humiliated and destitute and had no hope of ever getting back at a police officer. So he made the very reasonable decision to douse himself in gasoline and set himself on fire in the public square. One thing led to another, and eventually a mostly-peaceful revolution ousted the government of Tunisia. I am very sorry for Mr. Bouazizi and his family. But he did find a way to make the offending policewoman remember the day she harassed him as something other than Tuesday. As the saying goes, “sometimes setting yourself on fire sheds light on the situation”.

That is absolutely horrible, but I also feel like I have to ask about the practical applicability of that saying in the last sentence. (Also, that “One thing led to another” is carrying a whole lot in there.)