It would be interesting to see how much of a difference a lump sum of $50 billion would make, or not make, to long term world hunger.
It’s a lot of money, but the WFP has spent more than that in the past 10 years on the problem.
A lot of the issues with world hunger aren’t easy solved by throwing more money at it. Politics, logistics, corruption etc. It can’t be solved without money either, of course.
Not to say that money couldn’t be better spent elsewhere than the metaverse.
If you take money for what it should be - a measure of work invested towards achieving a result, then yes, I suppose we could get a lot done with people employed out of that 50B working towards the goal of ending the world hunger. Heck, I'd even argue building a moon base with that money would have been a better investment than the crap the "magnificent 7" is pushing on us.