How would we have made it to the moon, if employees took surveys, sent letters, and posted numerous signs about their disagreement with upper management? Why do

How would we have made it to the moon, if employees took surveys, sent letters, and posted numerous signs about their disagreement with upper management? Why do they work there then? I don't see how Elon has really changed much since 5 or 8 years ago to have fooled anyone who signed on for the company's mission. He wants to go to Mars. If he makes them uncomfortable, these people should not be in mission-critical positions, and possibly not at SpaceX.