Justice in Christianity?

And the penalty must be paid by someone” (Amy)

Isn’t this kind of scapegoating the concept of justice? Shouldn’t we pay the penalty for our own actions? Isn’t this true responsibility and accountability?

I posted that as a response to the idea all people are sinful and even thinking lustful thoughts needs to be ‘paid for’ by someone – since God is a judge. Well, and I mean this honestly, shouldn’t we pay for our own indiscretions? I don’t make someone pay for my mistakes in this life, why would I make Jesus pay for mine in the next?