When people said to me that SP can be bought it makes me think in how the big accounts are build, I'm new here so I don´t really realize yet how it works but I'm thinking if this is a business where who already has money or power before come here is the one who can grow up or if actually write good and useful post is a way of growing.

And I though about it because if is better to give upvotes to big accounts that can give you better rewards, Why should some one will spend time and votes helping the small ones?