Consider our friend the Rhinoceros. By rights, he should be a happy fellow. He is quite able to defend himself against other animals, and for humans, there are many tastier foods than Rhino meat.
Ask the average consumer about his or her interest in consuming what is for all intents a powder composed of ground up dead modified hair cells from a fairly unsanitary source, and the answer is bound to be negative.
Conduct a conjoint analysis on all the measurable physical attributes of this powder and you will have a very precise measurement of ... exactly the wrong question.

Instead, explore whether the average consumer would like to improve his or her love life, and relate that human motivation to some
mystical aphrodisiac properties in a rhino's horn, and what you have is ... a very panicked rhino.

Does it matter that there is really no aphrodisiac in a rhino's horn? No. Unfortunately for the rhino. It only matters that there are enough interested buyers in the world to keep Rhino on the run.
Our friend the rhino is butting heads with the fact that consumer behavior is not truly rational. Consumer behavior is based on an attempt to satisfy deeply held needs. One of these needs is tied up in sexuality. There are several ohter primary needs as well.
Adler tells us that these tend to be based on a combination of overcoming feelings of inferiority, and individual strategies to find satisfaction in life.