Do you think there's any value in trying to understand how human societies work at scale?
But I think economists did pretty well: supply and demand, marginalism, opportunity cost, Coase theorem... Not physics-level well but well.
> non-obvious
I'd maybe question this a bit. I suspect that many things we consider obvious are only so because of the field of economics -- but that's admittedly only an initial hunch.
Hence economics is a probabilistic field. The things that occur have a probability behind them. Instead of a policy that needs X to happen the policy can be adapted to "If A then B, if X then Y".