This is one of favorite from 30 Seconds to Mars.
I think the 'I' in this song meant 'the rebels' who are born from the weak people, who'd been discriminated, tortured, whom rich people called as 'trash', and they will arise to take revenge from all the unfairness government put on them.
Because one day, weak people will gather their strength and start the uprising to take down everyone who smiles happily over other people sadness.
It's a clear message to the government, "torture us for now and one day you'll be the one tortured much more badly."
I love this song so much.