For instance,if someone is able to create wealth without creating more value, and it must be at the expense of another source.
It’s been assum as a zero-sum game and has negative effects to economy,that’s absolutely a bad ideology.
This is a description of banking activities. The bank does not create value, the bank only redistributes value, thereby also creating wealth for itself at the expense of the producers of value. The original function of lending was to reduce the risks of the manufacturer, gradually it turned into a pump for pumping value into the wealth of banks. Now the financial system (which does not produce a single gram of value) occupies about 50% of the economy. This is, of course, an imbalance that will sooner or later lead to a collapse.