Vanilla is a product of Lussumo:
Documentation and Support.
If Luke's definition of 'living richly' means having non-consensual sex with mind-enemaed zombie chicks, then what he wants is power and control and the ability to debase other people.
And what kind of intervention is worse, an isolated case of "Package-assisted sex" or the manipulation of dozens of people for the sake of "redefining the human relationship?"
I think there's a significant difference between mind-control and joining Sirkka's harem. While making people feel good does seem to be part of her package, not all the Whitechapel citizens are in her harem, and I get the sense that those who are choose to be. What Sirkka does has the potential to benefit all of its participants and seems to be voluntary, although who knows what could be revealed in later weeks...
Sirkka talks casually of "teaching the boys tricks" and "riding them like ponies" which doesn't exactly fit the mold of "do no harm." Now, fine, she's probably kidding.