Please provide a real-world example of when this has most recently happened in any situation important enough to actually "count". The abuse exists everywhere you look, and there is never, ever, any serious backlash against it. The problem is that 99.99% of the population can care, but it only takes 0.01% willing to take advantage of the remaining population.
There will never be a sense of justice in such things. People who want the power will always take it, and there is nothing that will change that. Cynicism is not a negative trait, it's the bloody goddamn truth of our species. It sucks, but that's how things work. There is no changing this. It's simply not in the cards. Anyone who disagrees is either full of themselves or totally blind to the way the world works.