A "Post-Scarcity Economy" and a Utopia are 2 different things.
Man will never lead to Utopia because man hates his creator, and mans selfishness and pride believes that he can create for himself a better god than the one that he already has. When man has created the god that he wants, he will reap the fruits of his labor because his god will see him as a problem and decide that the answer is man's destruction.

You see, man is not able to create a machine that can love.Only the real God can love and define it. No other god in history has done ---->

Joh_3:16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.