If I were Lot I would have serious doubts about trusting Abram when he suggested he split things fairly. After all, Abram did just prostitute his wife in the interest of pragmatism and the greater good.
This chapter ends with Abram giving an offering to God. Whatever Abram isn’t (I still can’t get past what he did to Sarai in the last chapter), he is a believer. In the end, regardless of what part of the Bible you read, it’s impossible to forget than this is the story of a holy God and a fallen man separated by an impossible divide. The bridge cannot be goodness and we’re reminded by the intense flaws in the few people we’ve seen profiled God’s favor alone grants us salvation. (Even Noah was spared from grace…)