I think 99.99% of people would go with the $10B. It's not like you have to kill babies for it... It'd be dumb to hold this against the WhatsApp cofounders. I just think the parent comment saying MZ is somehow evil for this is not right. MZ believes in the ad supported model, and there isn't a whole lot of evidence against it so far. I prefer getting targeted ads over generic weightloss ads. I prefer a professional product over some shitty federated/opensource thing. A lot of people are upset, but then a lot of people don't have a clue how it works (also see the senate hearings, or the device manufacturer thing).
Or, being able to choose between $10B and your values shows your character.