But not all members of society are treated like a symbol whose behavior and manners we ought to revere and draw inspiration from. In such scenarios, pointing out that they were flawed is to humanize them.
It's clear that there was something that compelled you to write "yeah, so what?" as a rebuttal. But I can't tell if that came from a need to protect Franklin's public image, and to what end.
Throughout human history, there has been sparse evidence of historical figures which we draw (correctly) inspiration and admiration. I'll never forget reading Marcus Aurelius' Meditations where he was writing down in his journal how he was struggling to keep his sexual attraction to young boys at bay, who were also probably slaves. And he's still considered one of the five good emperors of Rome.
I'm not writing this to say whether any of them deserve it. I'm just pointing out that abuse of power isn't something new, and its expression isn't always known. For those people, the difference wasn't in their desires but that they had the power to act on them with no one batting an eye, and if they noticed they'd just walked it off.
Not that far from what we have today.