Although it is very generous of you to be giving donator status to people who can't afford it, but if this is really about just trying to get a higher rank on the servers your probably waisting your money. Even though it is not my decision on who receives a position on the staff, I don't think buying other people (who really don't even i'm not going to say deserve need this benefit) will get you VIP.
It's not that I'm being angry about other people getting donator for free, that doesn't worry me, it matters if you're not doing it for the right cause.
The way you phased what you said sounds like you're bribing people to help you to get VIP, which is countering your generosity (in my opinion).
Anyway, it's great that you are letting people experience the perks of being a donator, and it may allow them to see it's well worth it, and you are helping the servers a great deal, thanks for that.

I hope I wasn't too forward with my opinion, i'm sorry for that, but I just wanted to get a point across.