People like to compare Steemit to facebook because it's the most mainstream Social media out their.
So it's logical think of Facebook first before others like wordpress, instagram, twitter etc.

With the new SMT tokens you couldn't basically implement any media on the Steem blockhain. Hell someone could build a Linkedin clone. Where references of recruiters would be valued instead of blogposts.

Steem(it) has really a great future in sight.