She was left out of group lunches and was suddenly out of the loop of critical information.

FORBES: The Psychological Warfare of Women: Are We Our Own Worst Enemy?

These teachers then become the target group for the NTU program, which drops back into the endless loop of training untrained teachers.

UNESCO: Laos: Report: Part II: Analytic Section: cont. 2

What it seems to boil down to is this: being left out of the loop is perceived as a signal that one has low status or standing in the group.

FORBES: The Hidden Dangers of Leaving Someone Out of the Loop