Pressure to beat the dragon as soon as possible leads to players having multiple goes at it, starting before they are really powerful enough, learning and adapting as they go.
Some crews specialize in recovering bodies and selling them for resurrection them (like Dungeon Meshi). Also, giant spiders that creep around the lower levels and drag bodies off to be preserved in webs, including those left by the dragon. So corpse recovery doesn't involve fighting the dragon.