If STEEM is used to solve some real world problem, in assertive way. Say if STEEM becomes de facto solution for problem Y in market X. Either, or both problem Y and market X need to be significant.
Example:
Someone builds a next gen marketplace on STEEM, and due to its "10x" benefits it becomes the new eBay, reaching out to millions of people (market X). Now the chain holds all of this massive intrinsic value.
Plus imagine what you can do with your votes if that time comes. Really make a change with giving value where you think is deserved!