I see they are in wealth building/preservation mode when the story opens, and they are "highly vitalized persons who resent encroachments on their property."

Are they not also trying to social climb at the same time? I am very possibly confused on this distinction, since I'm only up to chapter six. I think I'm getting the idea by the opening line--"Those privileged to be present at a family festival...", as if the Forsytes view themselves as an exclusive club, and the attitude of "old Jolyon set small store by the class to which he belonged." It seems an awkward social position to be in, and maybe the Forsytes are confused as well, where you belong to a class you hope to break free of. I know I'm not explaining this well! I'll see if I can come up with better examples and report back. :-)