Why did Zuck even stick with this dumpster fire? He could have walked with what, 50B cash at what was the top of an obvious bubble and gone out looking like a c

Why did Zuck even stick with this dumpster fire? He could have walked with what, 50B cash at what was the top of an obvious bubble and gone out looking like a champ. So he could sit around and get accused of causing the world's problems and be globally hated? I think it shows how profoundly unvisionary he was to not see the writing on the wall.