I bring chaos yet shape history, dividing nations, but also uniting people. I am found in the annals of time and the pages of peace. What am I?

A toxic, leaching, heavy taint, you won’t find me dissolved in paint. To be in front, to claim the fame, just change the way you say my name.

A tool for governments, law, and crime, I'm by the side of heroes and villains alike, I have many forms, I am fear and security, But use me, and you'll lose your purity.