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Full Idea
The whole 'being pleased by cats being tortured' is definitely not better, and is likely worse, than cats being tortured. So its value cannot result from a sum of the intrinsic values of the parts.
Gist of Idea
A complex value is not just the sum of the values of the parts
Source
Francesco Orsi (Value Theory [2015], 5.3)
Book Ref
Orsi,Francesco: 'Value Theory' [Bloomsbury 2015], p.86
A Reaction
This example is simplistic. It isn't a matter of just adding 'pleased' and 'tortured'. 'Pleased' doesn't have a standalone value. Only a rather gormless utilitarian would think it was always good if someone was pleased. I suspect values don't sum at all.