Planning agriculture is a behavioral trait - eat the corn today or wait several months for it to grow? If you eat the corn today and have few other food options, then your chance of leaving offspring who survive to reproductive adulthood diminish.
Nothing you said takes a high IQ to figure out.
according to the US Army, my father had an IQ of 110. Just an average guy. But he could plant a penny nail and reap a nine foot crow bar. Because he was taught farming by his father and because he had talent for horticulture. He was in law enforcemnet for 25 years and never pulled his weapon, not even in the riots of '68 because he had a high social social intelligence, he was an empath, he could reach people where they were and bring them to where he wanted them.
This IQ thing isn't about a score on a test. Never was, never will be.
But I guess if a score on test is all you have going for you, you kind have to believe that it is.