And if all the ants in the world suddenly decided to work together to take over the world, they just could. Unfortunately, humanity isn't a person who can "just learn" something. It's a complicated interaction of biology and ecology. For better and worse, "we" can't all "just learn" something, only a person can. A person is smart, people are stupid.
The founding fathers were strong people borne of hard times, and given an opportunity to create good times.
You're attributing to malice what can be adequately explained by stupidity. The greedy always exist. (I'm not religious so i don't like the term "evil", but) the "evil" always exist. But the reason those people have any power right now (and did going into the great depression, and going into the civil war, etc., etc.) is because a weak society allowed them to.
On the other end of this, the goal is to come out with a new culture that prioritizes humanity over greed. We spent so long high on good times that we forgot that was a priority (temporarily embarrassed millionaires). But in hard times, people don't just decide to make this cultural shift, they literally have to in order to survive.