With steemit we become our own bank, do banks need to pay advertisements to make money, or do they just control and manipulate the money supply as they see fit?

That should answer whether we need ads, money doesn't need value pumped back into it for it to succeed it merely needs widespread accepted backing belief from people.

Here's the kicker, yes we can all create money, but we can't create our own money (without mining), someone must upvote our shit to create money for ourselves. That's the genius part, that's what banks didn't do (and why would they want to put their finances in the hands of some other institution, a competeing institution at that) they control their own money supply, I control everyone's money supply but my own. That's how steemit is different and why it's a far more beneficial currency then what current banks are offering today.