(also: since founded? that's a while :))
In the case of Virginia Raggi, people believed her lies about "not trying to win the candidacy to the Olimpic games because they are all about corruption and stealing from the taxpayers"
For a little time it worked, but it was simply to hide her incompetence as administrator.
She spent 5 years in the office arguing over minutia, while the important stuff was left there to rot.
From subway stairs that have been broken for over a year to buses catching fire[1] to unkempt public gardens.
Her political identity has been inaction: to hide her lack of competence she found refuge in doing nothing of importance, taking credit for everything good happening that was planned before she was elected! while also blaming those before her when something went wrong (it happened literally everyday!).
So routinely things like this happened [2] because she could not afford to take counter measures, every group could say "we put you there" and she had no interest in doing what's best for Rome, only what's best for her.
In the end even those that gained from her election realized that a city like Rome needs a good administrator, because even if we call it "the eternal city", neglect can do a lot of damages in a very short time.
[1] https://www.bbc.com/news/world-europe-44041597.amp
[2] https://www.dailymail.co.uk/news/article-2895104/Fury-Italia...
[1] - https://en.wikipedia.org/wiki/2018_Rome_escalator_accident