If this is a pattern, it is a change in the way D&D is played (and perhaps reflects changes in the rules). In OD&D/1e everyone aspired to get their keep or castle, start managing the land, getting involved politically. The rules supported that first rung on the ladder and inspired all the gamers I knew then to see that as the obvious next step - one which was eagerly anticipated and worked towards. Although I never saw the "basic-advanced-companion-etc" set, I understand that in the higher level sections they had rules on this kind of thing too.
One of the things that disappointed me about 3e was the elimination of all that aspect of gaming from the rules. It was 'back to dungeon' for your whole adventuring life, which I found bland and disappointing.
Since we've now had 10 years of D&D rules which don't even suggest that there is a whole 'dominions' game to be played, I'm not surprised if large numbers of people haven't developed any interest or anticipation of the prospect of role-playing the ruling of a nation or whatever.
Trends follow rules IMX.
Cheers