Cofty ...
"The difference Freddo is that the authorities didn't believe or didn't know about the activities of Saville, Smith and Harris."
Errr, I believe that the PM Margaret Thatcher knew of allegations about Saville and Smith before she recommended them for knighthood!
But Savile was first brought to the authorities attention in 1963. More recently he was interviewed under police caution in 2007. Time and again suspicions were brought forward about him. (But like WT he was a multi millionaire able to bring legal weight to bear and with a reputation of lots of good charity work to his name and so he appeared "as an angel of light")
Smith was mentioned in 1979 in Private Eye in connection with alleged abuse ...
What appears to me to have happened with the Pakistani Muslim rape gangs is the "perfect storm" of cowardly do gooders not wanting to stand up against being labelled falsely as racists or faithists coupled with the reticence of the "shame" of "everyone" involved in worrying about their reputations in tackling child abuse.