While it sounds good... it just isn't true in my opinion.
Might I suggest that, like dancing, she just may think it's appropriate to let the man lead the sex. But that doesn't mean she has given over ANY sort of power exchange. It doesn't mean there is a hint of the Bottom within her.
And as to the other... selfless doesn't mean submissive. In fact, a woman who willingly spreads her legs solely for my pleasure but takes none for herself, who does so merely for her love of me... well, it's actually a passion killer.