Each of these points pertain to the startup gaining leverage over the employee. Ergo, the reason startups like their employees to believe is so that they can r

Each of these points pertain to the startup gaining leverage over the employee. Ergo, the reason startups like their employees to believe is so that they can retain and control them more easily. On the flip side, if a startup that "believes" is more effective (or more likely to survive) than a company that doesn't, this could benefit the employees. Whether this is the case or just ideology, I think it's difficult to know.