The first move advantage is something to point at. 2017 was the year to financial the potential growth of the blockchain... hundreds of ICOs gained their support in order to grow the blockchain's rails to expand this territory, but also, to start bringing some users to this possibility.

Steem is, as i'm informed, the first platform in the blockchain that is meant for people (not inversor, or programmers), and that advantage would be really dificult to cut...

Now, im not sure if you are aware with Tether in the last price collapse, but the blockchain revelead to not be really strong dealing with bankers... If Steem wants to prevail it needs to GROW fast, and i think its on the good trail, becouse if banks, big companied with cashflow or media targets that market cap you were refering, they could easily do it.... usually, money wins.... and we will se that horrible truth more and more, like we did with Tether a couple days ago...