Maybe it's just me getting older but it seems like this has always been true across cultures and history. People like to believe that once they get power, they will act differently than the ones who came before. But in the overwhelming majority of cases, they end up being just like the people they replaced, if not worse.
Every once in a while you get an exception but that's why we remember those people - because they were the exception.
I just re-listened to "Machine"[0] by the Violent Femmes because I wanted to subject a work colleague to it because he mentioned Blister in the Sun.
"I took over the world in one weekend...
... but nothing changed! That would not be fair!"
The nihilistic fatalism is overwhelming.