I don't disagree with you in principle -- if Steem catches on big (and doesn't get hacked), the move in price could be correspondingly big.
However, the 1% fallacy is a common way to mistakenly justify large numbers -- in reality, most products never take even close to 1% of a given market. There's a pretty good article about that here: http://www.inc.com/erik-sherman/the-1-percent-fallacy-that-trips-many-entrepreneurs.html