Cause one man's ceiling is another man's floor
One man’s trash is another man’s treasure.
Or, one man’s treasure is another’s trash. That is, the best one man can hope for is like nothing to someone higher up. You can keep climbing the ladder, but there is no end; someone is always better off than you. What Comes Around is in part addressed to a “social climber”, a jerk who only wants approval and has no realness to him; he also takes on the values of whatever group will have him. Also, this person thinks he has a treasure, but really anyone in the race to nowhere has nothing.
See the chorus (“[Yo, Holmes, your nose is brown]”) and next verse (“[Living in the rat race]”).
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