Rep and smart contracts


I have a question about rep and smart contracts. So in the whitepaper it says that smart contracts get rep(meme) just like a normal wallet/user gets rep on the blockchain. Would smart contracts essentially get infinite rep due to them being there and available constantly or how does smart contract rep differ from normal peer rep?

Also, since smart contracts can be linked in what i assume is a top down heirarchy, and can be shared for public use, could a scam smart contract link to a real smart contract and essentially bring the rep of the real smart contract down? Or is the rep applied in a top down fashion in that it would apply to the top(real) smart contract, and then move on to the bottom(scam) smart contract and essentially penalize only the scam one?