Lord you can also argue the toss over the phrase
TO PREVENT THE PUBLIC AND PRIVATE WRONGS OF CHILDREN AND THE CORRUPTION OF THEIR MORALS
and
TO DO ALL OTHER SUCH LAWFUL THINGS AS ARE INCIDENTAL OR CONDUCIVE TO THE ATTAINMENT OF THE ABOVE OBJECTS
and whether parading publicly on social media in a context associated with your job (your linkedin profile) in rubber and talking about perverts really is in keeping with the charity's stated legal objectives.
What does 'corruption of morals' involve?
If you have a member of staff who has lead to the charity being defended by a lot of people suggesting that pointing out the inappropriateness of this is 'kink shaming' that certainly raises questions about socially accepted levels of morality and 'reasonable' expectations of the public.