If we can exclude bringing them unwanted diseases, then why wouldn't we make contact? How about the next tribe making contact with the first? Perhaps they have a few technologies the original tribe doesn't. Or the tribe after that? Where is the cut off point in who should be allowed to contact who and why is it there?
These are good questions.
I don't think there would be a sharp cut off point regarding what circumstances make it appropriate for one independent culture
to make contact with another. I too am going with the 'no easy answers' route. Another way to put it is that such decisions should be done on a case-by-case basis, as the case itself
establishes the relevant criteria used in evaluating 'what action(s) should and should not be done to achieve goal x
, which we generally agree
is a desirable goal worth pursuing'.
The underlined is the tricky-wicket here. Who is incorporated in this 'we', and how much wiggle room do we have with the meaning of 'agree'? The isolated tribe? Well, I can see us lumping an isolated tribe into the general all human beings
category and desires the conveniences of modernity
or some other somesuch into agreement. I suppose I can extrapolate that to an alien civilization composed of sapient entities that have qualia synonymous with 'joy' and 'suffering', though I will say I am concerned with my ability to understand and empathize with an alien civilization. My human bias is, like, wicked strong
there and I am hesitant to say I would truly be able to empathy with an alien. Ability to communicate with each other would certainly help assuage a lot of that concern, though I do, admittedly, have a wee bit of that concern in relation to myself and other humans
, so, I dunno.