I’ve heard that argument before. We visit those tribes also in the interest of basic human curiosity and for the advancement of knowledge.
Don’t you think that a far more advanced civilization with the capability of interstellar travel would want to visit other less advanced societies for the same reason?
Don’t you think we would do the same if we had that capability and knew of other inhabited planets?
I think that would kind of depend on whether they had something we could rip off and steal...going on our past efforts.
