Well they were standing together which is hardly meaningful. Ray ran off with Bobby's ex Jenna Wade (Priscilla Pressley) and raised Bobby's biological son. While Donna left to raise Ray's daughter with a democrat US Senator. Very odd plot developments that were the result of the characters leaving the show. More lost Ewing children are JR's first son that showed up as an adult toward the end of the series and the baby he had with his white trash second wife who ran off.
Going back to your allusion, here's a fun fact. Did you know that BEFORE Ray was made Jock's son he and Lucy were having sex, usually in the barn? This was never mentioned in the future once he was revealed to be her half uncle!
I didnt feel him terribly effective as a villain on Dallas, anyhow, in the waning last seasons. I thought William Smithers, the actor who played the cold and asexual Jeremy Wendell, the Westar executive, was much better, creepier and menacing and he didnt need the histrionics that so many folks playing villains seem to want to do.
Wendell was a GREAT villian. Evilest person ever on the show, he made JR look like a prince. He had the look of a man that liked little boys to me. He clearly felt nothing for women, I remember him trying to date Sue Ellen for some reason, his interest was super fake. He should be out of prison by now for whatever it was he went away for (he might have tried to have the one of the Ewing kids murdered or something to go along with the shady business stuff, I don't remember). I wonder how the actor is doing.
Too bad about George Kennedy.