Basically, Facebook needs to find a solution to poverty that ends with them consuming and disseminating the data of billions of people who happen to not be desperately poor. In many ways their best case is all the better if their data is of solvent people.
They've been on the defensive for years now. Recall how vehemently they downplayed Russian attempts to influence via Facebook ad buys and troll accounts
But to the general point, we've known how to fix the problems for decades but actually attacking issues of income and wealth disparity is asking for the people who are currently benefitting most from the system to give something back. And if history tells us anything, it may take violent revolution to see a real fix.
Also I believe in empathy as an intellectual response, i.e. in some sense the "enemy" can't help the way they are and should be given complete amnesty after they lose.
I never once claimed there was no evidence for the list of claims about inequality made above. In fact I agree with most of them. But they have nothing to do with the main claim that "We don't need more big data studies to figure out what is causing poverty or how to fix it." That's a controversial statement if you ask me, but the OP managed to distract everyone from it by posting a bunch of generally agreed-upon claims about inequality. (Which arguably will be re-enforced by more data driven studies.) It's a pretty good rhetorical technique for getting people to implicitly agree with you about something you actually disagree on: say something that is controversial and then quickly say a bunch of stuff the other person agrees with.
Along the way guess what, now everyone is implicitly defending the claim that there should be no further research on inequality. If the OP's post consisted entirely of "We don't need more big data studies to figure out what is causing poverty or how to fix it" then they'd have people disagreeing with them, but you should note they've literally said just that, since they have provided no evidence to support it.
You don't have citations in your post, that's because it's a summary. There are huge amounts of evidence backing up your claim.
A bigger issue than the uselessness of this initiative by facebook is the empty, bald-faced PR "Hey, look over here!" distraction that they're using to cover their callous complicity in disinformation campaigns.
That bothers me more.