Specifically, this is addressed in the section on the Fourth Law in YS (page 241, "Non-Spellcasting Enthrallment" subheading). "For the purposes of game rules, such powers are already assumed to have assessed the costs for holding such sway over another's mind."
And it says that "usually this is a case where the Accords trump the Laws" -- meaning, I guess, that a Red Court Infected would be liable to the Fellowship of St. Giles for any mis-use of their powers. I'm not sure how an unaffiliated Infected would be treated; probably ignored unless they were a threat, or killed if they were. (Though any Infected who was likely to be a threat would probably be a vampire very quickly anyway...)
From a world logic perspective, Addictive Saliva is basically just a "biological" secretion (though a weird alien one, and possibly not following known laws of biology) -- using it isn't an act of raw will in the way spellcasting is; it doesn't have that component of having to really believe in what you're doing. Similarly for Emotional Vampire -- it's a "natural" power of that sort of being, and it seems that at times the power can operate without really intending it to (Thomas says so in TC).
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Sponsored Magic is a trickier case. When Harry's adding Hellfire or Soulfire on as basically a supercharge to magic he already has, it can clearly break the Laws.
But I'm not sure if a Changeling, or somebody like Fix who becomes a Faerie Knight without previous spellcasting ability, using raw Seelie or Unseelie Magic, would get Lawbreaker stunts or not. Again, I don't think the Wardens would get involved (they might conceivably mess with a Changeling who didn't have "backing" from their parent's Court, I guess)...