I don't think strong AI would be a good thing to have on earth. I think if it has a function it should be to spread intelligent life off planet. It's something to put on a space probe with the seeds of life. The Von Neumann Probe in my opinion is a good use case for AGI.

The problem with developing AGI on earth is the motivation for it. Currently most technologies are developed for war. Most of the time the motivation for creating a technology is to exert control over people. An AGI in my opinion if developed now, will be used like a weapon to enslave or control the masses. I'm not in favor of developing WMDs so I'm not in favor of developing an AI which will trigger an arms race and be used to control society.

We might think it will not be used that way but look at surveillance. Look at how social media is used. Look at how the Internet is used. All of it has been weaponized to control people.