I find the term, "Service Top" reductive and downright insulting.

Of course I am going to negotiate the scene with my sub. I am kinky, not a psychopath. I expect a sub to respect me as a person and so I give them respect. Once the (negotiated) scene starts, I am totally in control, sure, but my play partner is my partner.

Her rhetoric makes for good ad copy and twitter fodder, but we are all responsible to each other.