Our author explains the main reason in great detail. A central banking system vastly increases the ability of bankers to lend more money than they possess in reserves. Absent central control, monetary expansion in a fractional reserve system faces limits. If a bank, desiring to increase its profits, expands too much, rival banks will call in its notes. If it cannot meet its obligations, it will collapse. A central banking system removes this obstacle.
The House of Morgan was by no means the first group in American history to seek the ill-gotten gains of centralized banking. FULL ARTICLE