Big evidence for this idea is that no businesses or governments are that interested in intelligence. If intelligence is so valuable wouldn’t someone be searching out and hiring 99.9% percentile high iq individuals from all over the world?

Or another way to look at it, we already have way more good ideas than we know what to do with. Putting them into practice is the bottleneck.

We are capital deployment variability limited with too much capital concentrated in the hands of too few decision makers. Inequality is an indirect measure of this and economic data generally correlates higher inequality with lower economic growth.

I think inequality causes a local maximization pattern of capital/company optimization making more profits for individual companies but dampening broader competition and exploration of alternatives which in turn is what kills higher growth

fewer larger companies also increases singularity blindness because of fewer larger investment directives