Kon
Why don't you care? Do you want them to cart you off in the middle of the night? Do you want them to destroy your life?
You died? You don't really think they would stop at just two, do you? I'm certainly no Cosima, but I can only assume that they would want as many versions of you out there as they could possibly pull off. They wouldn't want to risk one of you dying or...or as you said, another going completely insane. They'd have a back-up plan. A safety net. More lives to ruin and control.
I can only gather that's why there are so many versions of us.