So... I read that they have the Human Factor put into them, but that just left me confused. Wouldn't they reject it as much as possible; try to leech it out of their systems? Wouldn't they rather die? I mean, the one Dalek with human DNA ended up being killed anyway, and if Rememberance of the Daleks is anything to go by, even a simple non-human mutation is enough to start a faction war. The Dalek Rusty gained emotions but was no better than before as it still wished to kill, even if its victims were Daleks.

Given how much the canon Daleks as a whole desire purity... How would a Dalek agent with the Human Factor make it through the day without hating itself? How could it live with itself? Canonically, there's no such thing as a good Dalek; even with the few examples we got of a small possibility of a good Dalek, those are brief and/or not long lived.