Obama, the Savior of Hip-Hop?

Over the last few months since the the Democratic National Convention there seems to have been an outbreak in the hip-hop community. A new sense of hope and purpose has come to one of Americans most popular music genre. This genre of course is rap, a type of music that is usually filled with lyrics of materialism and violence. However, since Senator Obama's acceptance speech in Denver there has been a growing movement behind him in the hip-hop community, and since his general election win it has only gotten stronger. Every rapper from Jay-Z, Kanye West, Young Jeezy, and NAS seems to be releasing songs and albums in support of Obama.
Senator Obama's victories seems to be transforming hip-hop to a more socially conscious genre of music that is looking towards the future with optimism. The last time I have seen hip-hop like this was before Tupac's death. A sense of purpose seems to has re-instilled.