I think sometimes the issues come down to what brings a group together. You mention originally reality tv shows, as others and you have clearly said, these are often an amalgamation of characters designed to clash - or designed to be out of their comfort zone.
I do think there is a natural order to personalities and how they fit in a hierarchy, but acceptance of "ying and yang" is probably the key.
I am a bit of an antisocial character with people I don't know or dislike - but I love socialising with people I really get on with. I know when it comes to a lot of situations, I enjoy observing and pushing on rather than forcing myself into the limelight... I don't like bullies and I don't like loudmouths who don't know what they're talking about (who does?). For arguments sake, if I was in a survival situation and Ray Mears stood up and said very loudly what everyone needs to do, I'd be more than happy to follow as ordered and do what he suggests... if however someone stood up with a lot of leadership bluster, but filled with ums and ahs and I thinks and maybes, it would get on my nerves and I'd have a hard time biting my tongue.
My main issue is I find in many situations, I know when someone is talking utter testes about the answer to a problem, however I don't necessarily know the answer myself... so it becomes difficult to challenge in an acceptable manner.
Reality tv, is disappointing in that I'd love to see something like Bear Grylls the island with a load of true bushcrafter, survivalists and watch them build something amazing... instead its often designed for entertainment, characters who won't necessarily clash, but often don't naturally spend time outdoors... city people who walk in a park every other day who want to test themselves...