Genius has a "broader mission" to "annotate the world"[0]. That was the pitch that led to a $15M investment from Andreessen Horowitz. This on top of meteoric growth in becoming one of the top lyrics sites on the internet.

"While Facebook’s mission may be to connect the world, Rap Genius' mission is to bring context and knowledge to those connections. Rap Genius is itself a kind of social network, but its a social network based around texts and discussions of texts."

[0] - https://genius.com/Marc-andreessen-why-andreessen-horowitz-i...