I'm saying something even worse - humans are bad at decision making, we usually don't even most of the context required to make good decisions so we use heuristics to make decisions, and proxies for "good decision making".
If the above appears to be bizarre thinking, take a couple extra laps around the block.
Now I'm not saying AI is better, in fact above I mention that it's worse - but don't hold onto some nostalgic idea that decisions were made by people with lots of context thinking rationally and incentivized properly.