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RobinZ comments on Why the beliefs/values dichotomy? - Less Wrong
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Values are fixed, while many beliefs vary in response to sensory input.
You don't seem to appreciate the value of a utility based analysis.
Knowing that an animal likes food and sex, and doesn't like being hit provides all kinds of insights into its behaviour.
Such an analysis is much simpler than a neural network is, and it has the advantage that we can actually build and use the model - rather than merely dream about doing so in the far future, when computers are big enough to handle it, and neuroscience has advanced sufficiently.
Correct me if I'm wrong, but it's only simpler if you already have a general-purpose optimizer ready to hand - in this case, you.
You have to have complicated scientists around to construct any scientific model - be it utility-based or ANN.
Since we have plenty of scientists around, I don't see much point in hypothesizing that there aren't any.
You seem to be implying that the complexity of utility based models lies in those who invent or use them. That seems to be mostly wrong to me: it doesn't matter who invented them, and fairly simple computer programs can still use them.
If you've seen it work, I'll take your word for it.