I talked before about finding your moment
in which you have the skills and the position to make a real difference in the world. I found a really great example of what I mean in The Warmth of Other Suns
, a book about the great migration, specifically in the story of George Starling.
Starling was the son of sharecroppers, who moved to New York City. It's been weeks since I read the books so I don't remember all the details, but the important part is he worked as a porter in north-south train routes, so he got to experience the full spectrum of types of racism. Until a certain year black people could buy tickets for specific seats in the nice car in the north, but needed to move to the Jim Crow car when they reached the Mason-Dixon line. This wasn't just a symbolic problem, although the symbolism and the annoyance of moving would have been bad enough: the Jim Crow car was close to the engine, which produced a lot of pollution.
At some point the federal government outlawed this. But not everyone knew that, and life was easier for the railroad if it stayed that way. People who had paid extra for designated seats were being told to move. George Starling couldn't take this to court, or argue with the conductor (one of whom tried to kill him for less), or stop them from asking. He couldn't quit in protest. But he could inform passengers of their rights. Not all of them, because if they informed on him being fired would be a stretch goal and "clean death" would be in the upper half of outcomes. But he would sound people out as the boarded and quietly tell those he thought he could trust. Not everyone acted on that, but some did. He enabled some number of people to hold their ground and claim what they were legally entitled to.
From one point of view, it's a few pebbles. But you never know which pebble starts the rock slide.