Given the malleability of value in general, I think it's fairly reasonable to assume that a successfully digitized or in any way 'uploaded' human mind and its relative value would be a highly polarizing topic of debate, made no easier by the fact that it would be impossible to know just what sort, if any, sentience such a being would possess (unless we are assuming a full-blown, reliably testable theory of consciousness also exists). I only bring up sentience because I think that would end up as the determining factor in such debates, or perhaps 'personhood' is a more likely name for the same basic idea.
Your last point is the most relevant I think, and the trickiest. While I can certainly imagine a scenario such as that, it still leaves open the question of whether the uploaded mind was capable of being enhanced, which seems very likely -- and at that point, is there really much of a difference between it and an artilect?