There are no investors @loki unless you think buying power ups in Second Life is investing in it.
That's a little silly, second life has nothing to do with steem especially in the stake weighting system for votes.
Investors are investing in both the assets built into steem and also into the incentives for quality articles, and curation. And I think that it should be pretty clear by now that groups are on the agenda of the developers now, since I have given a clear illustration of how it helps defuse the problem of centralisation of attention in the trending and hot feeds, and would allow users to specialise in subject areas.