How is Robinson Crusoe the true homo economicus of the eighteenth century?

Homo economicus translates to economic man-a man who wants to acquire wealth-without unnecessary physical labor, and  can work towards accomplishing these on his own judgement.  Crusoe uses his fear to cause fear, and faces obstacles of nature and God to attain his own vision. Crusoe at first is terrified at the prospect of isolation, and having to rely upon himself. Yet, he makes his own weapons, bakes bread, and confronts the cannibals. As his confidence grows, he is able to attain his desires using his own power. While not really acquiring wealth in realistic terms, he gains a wealth of knowledge and skills from his ordeal.