Merely as a Means
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Treating a person merely as a means bypasses her consent through deception or coercion; ordinary use — labor, trade, help — keeps consent in the loop.
Show
A campaign hires canvassers at the agreed wage — use with consent. A cult recruits them with lies — the "merely," exactly.