Here are some things I am pondering at the moment. I don't have many answers yet.

Is the evangelical identity of the kind of churches I identify with closely connected with being middle-class?
Does being in a suburban, comparatively affluent area, in a church where a comparatively high percentage are well educated, tend in this direction?
Does the fact that people with a teritary education tend to design the leadership development mechanisms for confessional, conservative evangelical churches make us tend in this direction (ie is middle-classness institutionally built in as a foundational assumption without which it is impossible to lead in such a church?)
To what extent do middle-class values determine how a person in such a church perceives their relationship to Christ and their participation in God's purposes? Is it likely to make them more or less radical as a disciple? Is it likely to make them more or less missional? Is it likely to engender a greater or lesser desire for being God's community or God's team? Is it likely to prejudice in favour of the emergence of certain spiritual gifts and not of others?
To what extent do middle-class values effect preaching / teaching / learning methodology? Or other areas of church practise? If people have come precisely because they appreciate the up-front monologue method, is it possible to change without losing the core constituency? What if the mechanism needs changing but can't be changed without disrupting not biblical values, but class-oriented ones?
Basically I am asking to what extent confessional evangelical churches in the UK tend to appeal to a certain demography and thereafter become inextricably entwined with the cultural values of that demography to an unchallengable and unchangable degree
And then the most dangerous question: to what extent is our doctrine - or the methodology with which we derive, handle, teach and apply doctrine - affected by middle-class values? And how would we know?

Anyone got any thoughts?