I see two reasons to make clones: Immortality and piety dish, which pretty much sums up to the same thing.
They're all growing replacement organs for someone special, or their entire body is a replacement vehicle for someone special, but whether that's an outright brain transplant or just digitally imprinting brain patterns... Or they could be growing a virus or a cure to something horrible... Seeing how environmental effects impact on perhaps a "cancer potential gene" or else why let them lose to the our corners of the planet?
What if each of the clones is referred to as a colour?
Orphan Red, Orphan Yellow, Orphan magenta... Etcetera, etcetera.