Architect (from U.S.A by Dos Passos)

0Dos Passos wrote:02br
02br
00"Inventor of plans,02br
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00"plotter of tomorow's girderwork phrases,02br
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00"he [Farnk Lloyd Wright] preaches to the young men 01b00coming of age02b00 in the time of oprression, cooped up by the plasterboard partitions of finance routine, their lives and plans made poor 01font01b00by feudal levies of parasite money standing astride every process to shake down progress for the cutting of coupons:02b02font02br
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01i00"The properly citified citizen has become a broker, dealing chiefly in human frailties or the ideas and inventions of others, 01b00a puller of levers, a presser of buttons of vicarious power02b00, his by way of machine craft... and over beside him and beneath him, even in his heart as he sleeps, is the taximeter of rent, in some form to goad this anxious consumer's unceasing struggle for or against more or less merciful of merciless money increment.02i00"02br
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001 What does "coming of age" mean?02br
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002. What does the blue phrase mean?02br
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00- for the cutting of coupons = for money?02br
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003. What does Wright mean by "01b00a puller of levers, a presser of buttons of02b00 01b00vicarious power02b00," and by "01b00his 02b00[power?]01b00 by way of machine craft02b00?"02br
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00Would you please help me to answer these questions?02br
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00Cadzao 0-