...or who is smart enough to realize there is a social metagame outside the obvious game of cake optimization. The REALLY smart ones may have done a cost-benef

...or who is smart enough to realize there is a social metagame outside the obvious game of cake optimization. The REALLY smart ones may have done a cost-benefit analysis and decided that the payoff from the metagame - an increment in your opinion of them - is not worth as much utility as the incrementally bigger cake.