Popular music is the ultimate venue for creating a worldview and marketing it. Musicians do their best to come up with an original sound, perspective, or innovation (in most instances - see Spears, Britney for exceptions). They carve out a unique position, voice, and culture then hope people buy into it. Let us repeat that... they carve out a unique position, voice, and culture then hope people buy into it. Not making stuff for their audience, but finding an audience for their stuff.
Those silly artists are crazy and egotistical enough to believe they have something to say and that the world needs to hear it. As an entrepreneur, that same attitude works, too.
Record labels push, but worldview, taste, and consumer preference make the ultimate decisions (believe it or not). Of course, that assumes musicians can find a record label to begin with, but that is another story about perseverance and talent.
Most worldviews will never flood the market, but they can make a big splash. They can influence the industry, and every once in a while, they are sold to Google for $1.6 billion.
Take a side - preferably your own.