With the base expansion you had a lot of snobs move in, city folks who didn't understand what they were getting into who would get mad when a tractor going down the road held up their SUV going to get Jenny from ballet practice.
Before the expansion it was a fairly poor, rural area, I remember seeing something in the Wash Post about the increase in HS graduates and percentage increase in income being the highest in the area over the last 10 years.
Now you have the dichotomy of the poor, uneducated folk mixing with the base civilians and contractors who have college degrees and are making over $50-$75K a year. (I'm just generalizing here Sharon
) Of course this causes friction, the locals don't want to change and the newbies want it to be MoCo.