Answer:
Metaphor
Explanation:
G. K. Chesterton uses metaphor as the rhetorical device used in the Essay. The story of King Midas, who turns into gold what he touches, is used to invoke failure opposing the successful stories of Lord Rothschild and Mr. Vanderbilt in terms of wealth and possessions since Midas has all the gold that he wanted, but the cost is too great, fitting the title of his essay.
