One other thing for everyone to consider, the GB are here in the US. Even if they were born elsewhere, served elsewhere, they are pretty "Americanized" sitting on their thrones in upstate NY. In the US, a religious organization is not required to ANY of such charitable works. Just being a religion is enough to qualify for tax exemption and there is not an arrangement here for the government or taxpayers to give religions any kind of funding. (In fact, I was astounded when I learned that some governments, ie, Norway do that.)
I don't expect WT to organize some kind of charitable giving (cash nor tangible things like food pantry, etc). I think if it becomes required in other countries to have them maintain their "charity" status, then perhaps they'll grant the local branches to organize something to pass off as "charity", but I still think if would predominantly be for JWs.