the howness is an interesting question.
If we see self-ness as being acquired as being the product of evolutionary development for millions of years, the ai being a product of a product of evolutionary development might surely also acquire some of the evolutionary benefits:
after all, from whence comes the intelligence of machines? product of evolutionary development that led to humans which then furthered developing via technology.
Can we program a feeling of incompleteness? Well certainly. It is a gating system is it not?