I greatly recommend Ada Palmer’s “Inventing the Renaissance” if you have a lot of time, mild history literacy, and an interest in the Renaissance even passing. She talks a lot about Nick the practical statesmen who just didn’t want to see Florence get repeatedly invaded, conquered, and looted.
https://press.uchicago.edu/ucp/books/book/chicago/I/bo246135916.html
It was a job application. He thought republics were the best way to run a society and spends a lot of time in his other works talking about how that should happen and why princedoms kind of suck, actually.
Not that he was a human rights believer or anything, quite far from it actually.
Also, those meme seems to be implying he ruled Florence which is very wrong.