The need has already been disclosed. A billion dollars is needed to live a billion dollar lifestyle. The definition doesn't limit a person to someone else's standard of what qualifies as a "need".
The definition operates within the scope of a given scenario with a set of objectives: To do this, you need this.
That setup doesn't encompass any prerogative-based antecedents--and there's nothing within the definition that states it must extend that far.
