You're assuming that your ridiculous Facebook ads are going to drive people to Steem/Steemit and increase prices as a result. There's no evidence that your "marketing" plan will work at all. It would probably be better to simply give those rewards to spammers rather than piss them away on FB advertising. At least spammers might tell their spammer friends and possibly increase interest for Steem.
You, on the other hand, just make it look more scammy...with no added benefit of drawing in new users.