Zuckerberg holds 90% of class b shares which have 10x the voting rights of normal shares and gives him 4 billion votes. There are -2.4 billion class A shares. He has stacked the board with loyalist yes men. It is a dictatorship bent on maximizing profit. The business model and how they operate is defined by Zuckerberg. It seems to me that he should hold the majority of the blame.