Sociology related to world-building should be on-topic here. In fact, while we haven't seen a lot of it, it's one of the things that attracted me to the site.
I think questions that ask how having technology X would affect how communities behave is certainly on-topic. For example, a world in which teleporters are as common as phone booths once were would vastly change how people and goods move, how breaking news is reported, how calamities are fought, even how wars are fought -- that stuff's all part of the world's context. Questions digging into the sociological aspects of that should be as welcome as ones digging into the technical or economic aspects.
Of course, those questions still need to meet all our other expectations of questions -- not too broad, etc. "What would be the sociological effects of teleporters?" is too broad; I meant that as a category, not an actual question.