Hip-hop isn’t what it was during the late 1980s when there were a number of incendiary acts, none larger than Public Enemy, which rapped about what mattered with a palpable intensity. That was a golden era. A minority of contemporary hip-hop artists are rapping about what matters. You can put Jay-Z and Kanye West onto that list. The iconic recording artists aren’t like their peers, many of which are content to wax about conspicuous consumption.