I'm all for the judgement of people within their times- rather than automatically cringeing at the un-PC language of grand-parents, the racially segregated US army of World War Two, barbaric army floggings of 200years ago or the paedophilic arranged marriages of medieval Kings of England all should be seen and appraised in the light of their own era.
However...I can't see that particularly applies people turning a blind eye to kiddie fiddling 20-40 years ago.
I think the exposure of a culture of acceptance of ill-behaviour by the powerful would be very, very useful...and quite possibly prove a catalyst to all sorts of changes in perception in big corporations today?