The very mention of the word 'order' brings to mind possible consequences if the 'order' is not carried out, in this case, it may well have denied the second Master from being Bhai Lehna ji. You have posted this story on a thread about keeping hair, thus, I would conclude that keeping hair is therefore an order, similar to eating a Corpse.
The Sikhism that I understand actively discourages blind faith, and encourages understanding and enlightenment. If I may quote a story to support, as I know you like stories, when Guru Nanak refused to wear the Hindu thread, he must have realised he was setting a precedent in the very way of life he was advocating, ie, from that day on, how could he ever possibly encourage people to blindly follow without thinking first, and secondly, not to follow an order for the sake of following an order.
If this story is true, I can see another gem of wisdom that is more relevant than blindly doing what your told, just to get a gold star, and that would be that firstly, not everything appears to be what it is, the things that may seem repulsive, may in fact be gems of wisdom, or even food, but more importantly, the things that seem attractive, that draw you in, the offer you the promise of 'a good time', more often than not, are the corpse, the decaying rotting corpse, that offers a short term pleasure, but where the consequences of such, are huge, and permanent.
