What's philosophically right about no-false-positives? There should be a debate about whether it's not more right to balance the different injustices (innocent people in jail vs guilty people going free), rather than install a very high bar for conviction as the desired outcome. Perhaps I just haven't come across the argument.
For me, it's more what's philosophically right about an innocent person enduring suffering or punishment through no fault of their own. To me, that appears to be a great (maybe even the greatest) injustice.