I can think of a lot of ways this applies to pilgrims.
Pilgrims often inhabit their role fully. They are travelers across a landscape, observing and contemplating and doing all kinds of inner work. Sadly, it often translates to a disconnect with the landscape they are traveling across! Which means they are bystanders at village festivals and processions -- they smile and take pictures, then scuttle off without engaging with anyone. When the bells ring for Mass, the pilgrims cluster together out on the porch, they do not go inside or take part in worship -- which is supposedly the heart, soul, and purpose of pilgrimage!
When they see another pilgrim throw trash on the ground, they say nothing. They keep walking and leave it lying there for someone else to clean up -- they are pilgrims, just passing through. Why make trouble? It´s none of their business. Or they stand by and watch while others clean up the litter or the kitchen, or chop the onions, or struggle with tent-flaps or ponchos. The are observing, watching, keeping out of the way. Bystanding.
I think this may be just a phase in pilgrim role-playing. The longer one walks, the more he comes out of his observer role and into full interaction with the Camino and his fellow pilgrims. At least I hope that is true.