Anything you do will have consequences for decades to come

And here’s an example:

The 1953 Iranian coup d’état, known in Iran as the 28 Mordad coup d’état (Persian: کودتای ۲۸ مرداد), was the U.S.- and British-instigated, Iranian army-led overthrow of the democratically elected Prime Minister Mohammad Mosaddegh in favor of strengthening the monarchical rule of the shah, Mohammad Reza Pahlavi, on 19 August 1953.

Which, of course, eventually led to this:

The Iranian Revolution (Persian: انقلاب ایران, Enqelâb-e Irân [ʔeɴɢeˌlɒːbe ʔiːɾɒːn]), or the Islamic Revolution (انقلاب اسلامی, Enqelâb-e Eslâmī),[4] was a series of events that culminated in the overthrow of the Pahlavi dynasty in 1979.