Ultimately, I think that the best answer is for AI Devs themselves to be extremely clued up on the potential social impacts of what they are working on and treat that with the same reverence as staying up to date on the latest literature. Only then do the kinds of "specific impacts" which the article brings up become clear enough to act upon and plan around. From there, one can work on safeguards, due diligence, or whatever else you want to call "making sure my tool doesn't hurt people".
You need to bridge the gap as much as possible between engineers sat in a plush office in SV, and the individual who is going to have their life affected by those engineers (and their AI imbued tools). Otherwise, it's just too easy to loose touch with what you & your tools do to the world and the people in it.