True, I was mistaking him for a human being for a second! He will have had his sons and parents to the house, and bragged about his mansion with swimming pool at the bowls club - not a bit troubled that Helen and Boris' bodies lay there.
BUT- what is the view of a possible Brocket Hall wedding. He said wtte -you would have to see it - it was so amazing etc. My view - is that he is THERE showing off how successful he is (how clever he is). He only needs the Prelude .. the Play doesn't need to happen - for him to feel like the wonder Protagonist.
I think he sees himself as snail, gathering his shell and enabled. (That's crap but I needed to write it).