If I donated millions to them, I’d be furious.
Don't get mad; convince the courts to divide most of the nonprofit-turned-for-profit company equity amongst the donors-turned-investors, and enjoy your new billions of dollars.
The technology was meant for everyone, and $80B to a few benefactors-turned-lotto-winners ain't sufficient recompense. The far simpler, more appropriate payout is literally just doing what they said they would.