not if letting 10 guilty esacpe breeds more and more bad actors. you can make the argument that a few innocent suffer is a net benefit for society in tne same way. in pursuit of 0 innocent suffering you will capture no bad actors
To put it another way you're forgetting the victims. The 10 fraudsters made 10 people suffer. their suffering needs to added to the equation
The current system from that perspective works great. You have to get pretty unlucky to get convicted as an innocent, especially in this day and age where a cop’s testimony isn’t worth nowhere near as much as it used to be.
And morally alone it’s far worse to wrongfully convict an innocent person than to let a guilty one go free.
To put it another way you're forgetting the victims. The 10 fraudsters made 10 people suffer. their suffering needs to added to the equation