Ghost Mart is pretty insignificant to me and not likely to take over my business, but that doesn't mean I'm going to let them advertise their Discount Paranormal Research Equipment here for free.
Of course your not on Google Adsense... You have to pay to be on it. I am on Google adsense, but that's because I understand that promoting a website costs $$$.
You would have to have traffic yourself in order to send any my way. That's like me offering you a free link on my other website that nobody visits. Oh and just to take the piss a little more I'll put notices up all over it saying "Punter John not welcome here".
Pat x