That's probably due to loss aversion: people focus more on avoiding things that could worsen their situation than on things that could improve it.
I'm superduper in favour of (myself and everyone else) understanding the human mind better so I can deal with humans better. Partially because I find humans hard to deal with otherwise, and partially because I think it'd help everyone get along better.
Also in favour of people getting along. And problem-solving. Problem-solving rules.
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