Or HaChaim on Genesis 14:16/אור החיים על בראשית י״ד:ט״ז

1 וגם את לוט ואת רכושו השיב, and he also restored Lot and his possessions. Although the whole exercise was designed only to rescue Lot, the Torah first reports Abraham's spectacular military accomplishments and how he restored their property to the five kings. The reason Abraham restored the women and children to the kings of Sodom was in recognition of the fact that they had treated Lot with respect and honour.