It certainly is after a lifetime of being "satisfied" by objects if that is how you choose to live. It is a learned behavior that could very simply stem from primal instincts to appear more formidable to rivals, but you have the ability defy your programming.Is ego satisfaction a measurable property of an object?
To talk about "freedom" to pursue one's interests is a no-brainer. To talk about sacrifice, now there are some points to discuss regarding free will. Another good point would be how addiction circumvents your free will. It is hard to isolate free will from "evolved chemical responses" and learned behaviors. It seems to me free will is best exemplified by choices which defy all expected outcomes yet is not a random choice.Free will is not so free, as it usually favors our own interests.