People tend to take metaphorical things literally when they’re too big and abstract to comprehend. This example is “You are what you eat.” Therefore, you can always tell a person’s values from their diet:
People who worship Christ take communion.
Romantics (who worship the virtues of youth) eat children.
People who worship product consume product.
People who worship “humanity” consume humanity.
People who worship white supremacy eat white supremacy.
People who worship money eat the rich.
People who worship dick eat dick. Literally, in extreme cases (ref. Haidt’s consensual cannibalism story).
People who worship pussy eat so much pussy they get throat cancer.
Slaves eat away at their masters.
The dead eat the living.
The weak eat their heroes.
Hypocrites eat authenticity.
HR departments eat the best workers.
Corporations eat their marginal gains, their founders’ dreams, and human motive forces. A triple threat!
Postmodernists eat the weak.
The damned eat their saviors.
The idea goes on like this for some time. Generally, people become more literal as they purity spiral away from realism into greater idealism. As the intensity of need increases they go from mere vampiricism to cannibalism proper. You can read a person’s values from the results of their actions over time–if everything they produce over a lifetime ultimately results in eating children (e.g. education, Silicon Valley), then you know deep, deep down they’re romantics.