I think the math is something more like: $COMPANY provides bagels. +1 "Sweet!" point. $COMPANY provides bagels, but later stops providing bagels. -10 "Sweet!"

I think the math is something more like: $COMPANY provides bagels. +1 "Sweet!" point. $COMPANY provides bagels, but later stops providing bagels. -10 "Sweet!" points. The removal of a perk has a larger net negative impact on morale than its existence ever did on the positive side.