Yes, a powerless feeling, indeed.
Being treated as a criminal when there is no basis for such treatment causes people to question the whole system.
While I hope the airline was helpful in helping you connect with your destination and offering lodging accommodations, I suspect they were not. Provided adequate early arrival time, they should have an obligation for unnecessarily detaining people.
You’ve said it well here: “Some must hate their jobs, and, basking in the power they yield…”