On the road so very briefly: Romans raises the question how do we live a holy life. Sanctification. The big answer Paul gives is that we can only live a holy life if we break free from the power of sin. The smaller answer (ch. 12-16) is how the broken free from sin life is lived in particularities.
Here is the thing: churches argue over whether Luther/Sanders/Calvin/Wright/Council of Trent/Etc is right re justification by faith/covenantal nomism/etc but as best I can tell NOT ONE CHURCH which is assured it rightly understands Romans has actually demonstrated a consistent break from sin in the way its member lives. All struggle with sin. None has the recipe for holiness sorted.
Have we focused on the wrong part of Romans?