Sure. In this context, if you're underwater, and the guy who is the designated leader indicates you should do something, odds are good that you should do it.....but I still am not going to say that you should do something no matter WHAT he says. At some point, one needs to use one's brain. While, most of the time, that brain may tell you, "do what he says, even if you don't understand why" in the heat of the moment, other times, it may say "no - don't do this". Hell, it's why some criminals go to jail and why some manage to stay out of jail. You gotta know when to follow the leader and when to cut your own path.
But in this case, if you go into a guy's shop or whatever and want to chat him up about whatever, with the goal of learning something - if he comes across with the attitude that has been described on here, it's generally not going to be very successful in communicating. Not to mention the fact that, many (most?) people, who understand WHY a standard or rule is in place are more likely to follow it than those who are simply told, "it's a rule. It's the way it is. No questions allowed". The old parental mantra, "because I said so" loses its effectiveness around age 12.
I guess I just don't have enough exposure to these people. Maybe I should get out more.