I think a nomdic tribe is a great idea. It would be like the rainbow tribe i suppose in the fact that we would go places and use the materials there , but leave them better than when we arrived. If the whole world was constantly moving around this planet and helping it while experienceing it, we would all be much more intelligent, appreciative and satisfied. There could even be certain people who stay in thier place like doctors and such. Not every one wants to live that way, but we could find them a functional and rewarding part in the new found noamdic culture.
People stay willingly under our culture becasue they dont see an alternative.
If the exploration of the world was offered as an alternative, i believe people would walk away. It would be satisfaction, and a true one, not a monitary or material one. People would see this groups example and they too would want to be part. A satisfied nomad- our technolgical knowledge makes us so we no longer have to wander and search.