I mean, assuming you're older than 25, there's only so much depth that could go into a song before you feel like you've heard it all. There's still a ton of youth that haven't heard the messages in music that are so status-quo to us more seasoned listeners. And with Twitter, YouTube and podcasts, activism is probably the most accessible it's ever been. So a lot of people might not even seek conscious messaging in their music once they've consumed it in those alternate media forms.
As far as music that speaks on bad music business practices, JPEGMAFIA is pretty good with that.
Also I'll list my own example. Take this record by Boots Riley:
The first few verses tell a story about a character that, at first, doesn't appear to take a stance on the issue (prostitution). In fact, its about the fact that he
agreed with it because he was literally raised by a pimp and a hoe. By the time he's grown, he's going through an internal battle where he sees himself repeating the sins of his father when he should've known better because he knows firsthand what it cost his mother. Boots Riley doesn't interject his own political/philosophical views on pimping until the last verse when, as the listener, you should've already picked up from the story he told in the first three verses that pimping did no one in the story any favors. The direct anti-pimp rhetoric he dropped in the last verse was just the emphasis, but if he hadn't told the story first it would've came off as preachy and most mfs wouldn't have cared to hear a song w/ a diatribe. Instead, it's considered a hip hop classic and literally inspired a book because the rapper showed his depth on the subject.
Very, very few rappers these days go to any type of depth about any topic, never mind anything pro-black.