To do anything at all, one needs money. That money either comes from the financial sector of the economy, which is to say the casino-like atmosphere of derivatives and the like, or it comes from the what some economists actually call the "real" economy.
All through history, capitalism has been a combination of these two phenomena, which may also be called the fraudulent side and the honest side.
If the fraudulent side is kept in check by natural forces, that's all well and good. But what if it is not? If it is not, then humans have to intervene. That is when human beings have to use their wisdom to intervene and control the economy. We think "control the economy" is a dirty word(s), due to the conditioning we have received from the society in which we live. Actually, that may be wrong thinking.
There are no simple answers. We cannot say simply that "the economy" is a thing in itself or a magical force that takes care of itself, all the time. Why would that be? Yet this is the view that was upheld, and it went on for decades.
Only now is this view being questioned once again and its defenders have suddenly scattered like flies --- and that proves there was nothing to it. But you can see books lining the shelves. There were these books coming out every week, I used to monitor them, books that came out anytime in the last thirty years or more, giving this "magic of the markets" view.
Capitalism comes to rule, and after it does, first, money takes over; then, ideology takes over.
Where are those pundits and masters of economic theory now? Where is their defense of their position? Where even is an admission, "I was wrong"? Nowhere. Doesn't exist. WE hear nothing from them. (Oh yeah. I did see that Kudlow guy on T.V. a few months ago!)