You may not remember it, as its more a factor in primary than in secondary education, and anyway its a kind of behind the scenes thing, but education and educational sociology are basically about giving the child the emotional and social skills to enable him or her to interact with other people and operate within society. This involves a set of values and conventions that may not be the stand up and recite them with hand on heart type, but are very definitely present.
Its not about changing the world for selfless reasons. Its more about preparing a child to get by in a society that will necessarily throw all kinds of adversities at him or her, and yes, give them a positive, altruistic approach to it if possible. Plus you learn a few useful concepts that carry through into later life (basic maths, language, thinking skills) and later on some specific stuff that prepares you for a career of some sort.
I would agree, though, that TKD does emphasise an explicit code of behaviour that other sports perhaps dont. Id also say that the traditional concepts of honour, respect, cooperation, humility, etc., are being lost in direct proportion to the growing emphasis on sport and competitiveness (i.e. I win, you lose). Just look at the behaviour of many competitors and coaches at major competitions.
By the way, apartment blocks have tenants. TKD has TENETS. OK?
Once again, we seem to be shying away from the subject of putting instructors on a pedestal. Ive lost count of the times Ive heard something along the lines of Hes so wise, I feel so honoured to train under him [or meet him, or whatever], I dont know if Im worthy . That makes me think, Are you so willing to subjugate yourself in other walks of life too? And besides, arent you paying him? To me, the reciprocal master-disciple relationship is often, to one extent or another (often to a very minor extent), a rather unhealthy exploiter-exploitee thing more than a constructive instructor-student thing. The fact that money is changing hands is a big giveaway.
Cheers,
Simon