Steem will not attract investment like EOS. It is an anti-market coin. It measures value by, well, value. The Proof of Brain concept, that valuation of what people find valuable, is an anathema to the "market".
If Steem succeeds it will not be due to big investment. Success, if it happens, will be due to a common market of ideas and dedicated community.
Steem is outside the corporate box.
If I had to guess, I'd guess the media peeps will accept and try to pilfer the value out of steem before shifting to some mature bankster aping of the Steem blockchain.