'Good' AI should be a help. But a human created new and good concept, developed using some good ideas, can also go a good ways to helping such as the environment. Eg. 3D ocean farming. Very impressive specs of how such farming can supply us while cleaning the environment.
But creating such good concepts to start with isn't something we've been well trained at doing. Instead, many of our existing concepts were established during periods of ignorance, which then carried on influencing our thinking.
The human brain can be powerful, but like a powerful car, how well it operates also depends on the driver.
People with high intelligence can often be poor at thinking - poor drivers. They use much of their intellect to argue and defend already held 'wisdom', instead of using their thinking well. Most all haven't even been trained well on how to think well.
People also don't think fully on many topics - which can lead to more different conclusions than there should be. It's one reason why Edward de Bono created his 6 Thinking Hats method - so people can have a framework to help think things through more fully, and help bring in logic and emotional thought when it more seems the right times to do so, instead of them misdirecting and dominating thinking so much.
In a nutshell, most all of us are not as great at thinking as we think we are, or could be. Maybe some 'good' AI will be able to help with that, as well.