[UnquietTinkerer]

This is just playing games with microeconomic terms. However you choose to define "value", using heroin is self-destructive and usually (always?) irrational. If you choose to include that kind of behavior in your definition of value then the word loses most of its useful connotations.

[manigandham]

No it doesn't - because that's the definition of "value". Anything beyond that is your subjective interpretation.