Ranking up honor in RDR2 even further boosts the quality of looted tonics and gives access to new outfits to purchase from general stores or clothiers, outfits befitting a man of honorable stature.
The Trapper is available at all times, so furs collected from hunts can be traded in for nifty (if garish) outfits ... In the vanilla version of RDR2, there's no way to save Arthur; he's doomed ...