We are more than who we are at any given moment. We are also who we aspire to be.
Both Zimmerman and Martin were flawed men, but Zimmerman's writings and behavior showed a man who aspired to be something better, while Martin's showed that he wanted only to sink down. Martin can't be entirely blamed for that, he did not create and perpetuate the fake gansta culture. It's the mostly white entertainment industry that did that, often embedded in the same news corporations which organized the lynching of George Zimmerman.