I think our view of what constitutes a moral life has changed over the centuries. I think the changes we have seen, our view of slavery for example, have generally created better societies and made us more aware of our obligations as Christians. This doesn’t make us more moral, necessarily, but it does make us more aware of what constitutes morality. Your point about the death penalty is one I can agree with. The death penalty is no longer permissable precisely because our social and justice systems have developed to the point that such a penalty is no longer necessary to protect society from immediate danger. This is what the Church has said in the Catechism. It is because we are safer that there is no excuse for utilizing the death penalty in our age. If it is easy to be against the death penaltynow, it is because society has changed for the better and we have become more aware of our moral obligations.