The relevance is, if a older man wishes to date a younger woman, and he is not married, not only is it okay, it is none of our honking business.
When I was 24, I was dating a 42 year old.
May/December romances are not morally objectionable, unless you are one of these busybody types who's got a freakin' opinion about EVERYthing someone else does.
Did you read this story? He is IN trouble for doing this. Whether you think it is OK is irrelevant. It obviously was not and he should have known that.