There were about one crisis every seven years

in the 19th centuary, which most of the time under gold standard. Boom bust is just human nature.

Wall street was the gold standard protector before world war II, it was Roosevelt who fought with Wall street to devalue the dollar. Goverment has much higher appetite for inflation than the wealthy population in a society because they always want to expand. Wealthy people want to preserve their wealth and are generally opposed to inflation.