This is useful information, though I object to the term "oligarchs".
Perhaps (or likely imo) as user base increases, so will the number of witnesses.
https://steemit.com/witness/@jerrybanfield/meet-steem-s-top-10-witnesses
See above post and timcliffs weekly reports for a deeper idea of what our top witnesses do. Much of which is based out of belief in this platform and willingness to help, out of the goodness of their hearts.
Quite a bit more to being a witness than running a server.
What do you think @banjo?
I don't know, you're a peanut.
Will you ever be witness?
I don't think so.