True, but WW-2 also showed that if countries possess nuclear weapons, there will be no total war any more, and the industrial base won't be the highest priority for warfighting. And since all countries in the neighbourhood are nuclear...
Of course, having a mighty industrial base serves other purposes, especially in peacetime. Prosperity, for one. I really hope that USA doesnt allow its industrial economy to be undercut by east asia. Detroit has to rise again. Wall street can't manufacture prosperity and wealth, only industries manufacturing and production can.
Where do you think industries get the capital to manufacture and produce the goods? From Wall Street. When people invest especially limited partners, companies in manufacturing sector are able to expand and create jobs which in turn allows workers to earn and spend and so on. You already know that.