If you help a person in last place build some additional settlements they will still be trying to win the game, rather than bored with no hope of victory in sight.
Kingmaking is a dynamic which means the leaders of the game should be making un-even trades to the people in last place to help them along. If you help a person in last place build some additional settlements they will still be trying to win the game, rather than bored with no hope of victory in sight.