I can't say that I entirely agree with Blondie, at least according to my experience. I grew up in one of the wealthiest counties in the U.S., with a highly educated general population. I believe that my mom was one of the very few in the three congregations in my town who had been to college. Only two of the many elders and ministerial servants had college degrees; one was an accountant, I'm not sure what the other one did exactly. Most of the brothers in the congregation were janitors or in construction trades.
I went to college in a typical "college town". I think only one of the elders and ministerial servants in the two congregations there had a college degree.
When I moved to "where the need was greater" to a dinky community of a few thousand in the middle of nowhere, three of the four elders in the congregation had graduated from ivy league colleges. Of course, they had moved to where the need was greater, too, and none of them lasted too long.