If you want to know who is in power look out for the tallest buildings.
In every major city center of the world you will find a financial district, often with the tallest buildings in the country. In the last 100 years the power structures behind these buildings have risen and expanded their power by stealing time from productive people through inflation.
Every major building of this size is financed by debt and equity. If you have enough equity to pledge as collateral, you can leverage your power to erect these towers and acquire even more power in the process.