There are very few statues for great men in public spaces in Venice, of which only one (1) from the time of the Venetian Republic.
The Venetians didn’t do statues of great men in public spaces. In over a millennium only one such statue was erected in Venice.
There aren’t a lot of statues in Venice to commemorate great men of the past, but there is one for Bartolomeo Colleoni, who wasn’t even Venetian.