Looking for an excellent guide to the "hidden curriculum" of law firms and law careers? Kimm Alayne Walton's book What Law School Doesn't Teach You...But You Really Need to Know fills the bill.
For example, on page 194, she points up the dilemma faced by a law student who had just gotten a job offer from a law firm:
The managing partner had sent him a letter inviting him to the firm's annual golf outing. The letter included the line, "We know you may not golf, I don't, but I participate every year." The [soon-to-be-lawyer] asked [his law school's] career services director, "Do I really have to go? I've got to study for the Bar exam. And I don't golf!" She responded, "Absolutely! You should tell them that you're really excited about it, but you've never held a golf club."
He protested, but she continued, "You don't know if this is an event you can blow off. The tone of the letter suggests that every lawyer in the firm goes. If they all do it, you can't turn down the invitation."
NTs tend to be hypocritical about certain things, including superior-subordinate relationships. They don't always like to let it show that they're ordering a subordinate to do something...but they do expect the subordinates themselves to understand.
Such as with events like golf outings. On the one hand, the point of something that looks like fun is that it's supposed to "be" fun. And that's kind of hard to reconcile with subordinates being ordered to participate.
On the other hand, those in charge want everyone to participate in certain things, perhaps to give a show of having fun and help the superiors feel happy about putting on a good event. Other reasons may include helping the people relax and get to know one another better, and helping superiors observe subordinates under more relaxed conditions. For example, is Lucy really a sticker for detail? Put her in charge of the refreshments and let's find out!
Such knowledge is supposed to help everyone work together better. That's why the superiors ask subordinates to come and take part. But it destroys much of the point if the subordinates feel forced to do so.
Superiors manage this tension by putting certain obligations in softer terms. They don't necessarily say "You must do this" but rather something like "Even though I don't typically do this activity, I'm taking part here." The message is "This event is for everyone, not just for those who like this activity for its own sake. You should come even if you don't enjoy it."
Also, when a superior says something like "Everyone else is coming in Saturday," that means you should too. Yes, maybe you have better ways to spend your time Saturday. What are the odds that nobody else also had better things to do? The idea is that you should come even if you have things you'd rather do.
Trust me, when someone in a position to affect your life says that they themselves are doing this, or that everyone else is doing that, it's not meant as an amusing bit of trivia. Rather, it's considered a polite and not terribly subtle way of communicating that you'd be well advised to join in. With a smile.