You know, you're right. Who knows who might be interested? The only way to find out is to try.
I'm just thinking out loud now - but perhaps the best target for outreach would be the owners / operators of collectives, record labels, management groups, book publishers - people who work with a large group of niche creators. We could get dozens of new users off of a single successful "sale" of steemit in that way.
I hoped that this article in Rolling Stone would reach some of those people, but it still seems to be under the radar. Big companies will already have a 'marketing strategy', but smaller operators may be more open to alternatives.