ie. sort-by a vector; wherein have to sort by one category before another
comparable within one category, but not between categories
akin to the types of reward functions one might set up for OptaPlanner
in the above
2 tier-1-bad things is worse than 1 tier-1-bad,
BUT, 1 tier-1-bad is worse than ANY number of tier-0-bad, and so on
hence the typical unwillingness to "kill 1 healthy person to save 5"
(all this seems also related to usage of tokens in primitive economies, as discussed in Debt: The First 5000 Year; wherein first uses of something that looked like currencies where tokens - shells, special fabrics, rods - to signify infinite debts, like due to killing of someone)