What is it that makes some broken people to use their brokenness as a tool to hurt other people and others to rise above and become better people?

If you gaze long into the abyss,the abyss will also gaze into you.Thats a quote btw,got through lots of traumatic events during my childhood and i just wanted to hurt the world back,once you get through something tough you have 2 choices either accept what happened or emerge yourself into hate(thats the abyss) and seek to hurt others just so they can feel what you felt.People are different this means different reactions