Many of the systemic problems we have today are the direct result of greedy and intelligent people.
A hypothetical world where all people are one deviation smarter would probably be way more dangerous and stressful. The number of highly intelligent sociopaths would explode, leading to exponential damage.
Perhaps, but also tons of issues come from people's stupidity and shortsightedness. People become greedy and callous in large part due to bad childhood experiences, and bad childhood stems from parents being stupid or making bad decisions (like having children while 17 years old). The only way to stop the perpetual vicious circle of bad parents raising another generation of shitty parents (and shitty people in general) is to improve people, not by keeping them ignorant.
A hypothetical world where all people are one deviation smarter would probably be way more dangerous and stressful. The number of highly intelligent sociopaths would explode, leading to exponential damage.