If you moved here from the Northeast, you might have brought your own set of progressive values. But you would have seen racial tensions in your former home that were a corrosive force many communities were ill-equipped to deal with.
The tendency back there was for municipalities to wall themselves off, typically on the basis of income. Inner-city riots, crime and general social dysfunction made the cities and their residents seem threatening. With school systems tied to municipalities, not counties, residents of affluent towns didn't (and still don't) need to think about having poor kids in their children's classrooms.
It's not surprising that folks moving to Wake County from such places would bring with them a certain set of attitudes and expectations. And that when they got here, many would settle in the newer suburbs of Cary, Apex, Holly Springs and Wake Forest, if not the sprawling stretches of North Raleigh.