I don't think, its going to work. I have a better suggestion for you. If you really have the ability to advertise Steem to 20+ million followers, then go to big brands, like Apple, Microsoft, Amazon etc.

And ask them to reward people in terms of Steem , when someone buys their product or Service. That way, we will have more stake holders in this platform and that will create more trust.

And they will get direct customers so that they can pay here, in stead of what they spend in advertising.