I recall a 3 day course (20 years ago) on working with perpetrators of csa. One of the 'types' identified was the charming, well liked, professional. Within days of this course, our well liked, much admired primary school head teacher was suspended as a result of historical allegations from a previous school. He wasn't prosecuted, the CPS felt it was unlikely two teenage girls, one of whom had received psychological support because of the alleged abuse, wouldn't convince a jury that such a well respected, likeable chap could possibly have abused them.
Some years later, several other victims came forward. The outcry in our area against his suspension, the support he received from the majority of parents had silenced these children.