The path between A and B has enough tangled branches that I'm reminded of childhood maze puzzles where you have to find which entrance even gets to the right goal and not the bad outcomes.
The most positive take is: they want to build a general-purpose AI, to allow fully automated luxury for all; to built with care to ensure it can only be used for positive human flourishing and cannot (easily or at all) be used for nefarious purposes by someone who wants to sow chaos or take over the world; and to do so in public so that the rest of us can prepare for it rather than wake up one day to a world that is alien to us.
Given the mental image I have here is of a maze, you may well guess that I don't expect this to go smoothly — I think the origin in Silicon Valley and startup culture means OpenAI, quite naturally, has a bias towards optimism and to the idea that economic growth and tech is a good thing by default. I think all of this is only really tempered by the memetic popularity of Eliezer Yudkowsky, and the extent to which his fears are taken seriously, and his fears are focussed more on existential threat of an optimising agent that does the optimising faster than we do, not on any of the transitional dynamics going from the current economy to whatever a "humans need not apply" economy looks like.