"Anonymous. Where do you get your weird ideas from. You might like to know I copied my contibution exactly as it is written in the technique book. If you want to disagree with the Technique Book be my guest."
It was quite clear that those were not your own words, yes, but that does not change the obvious fact that they are quite shortsighted. Understanding of dancing has come a long way since those were written.
There is of course some element of truth though. If you look at the actual places where turn - diversion in the direction of energy progression - occurs, those are over the location of the 2nd and 5th steps, and occur at the start of the 3rd and 6th steps, or the peak of rie. What happens there is that the energy must be diverted towards the inside of the turn to be made, which for a natural turn would ordinarily be somewhere towards the center of the ballroom. And it is true that the sway may well be in that direction at that instant in time. So we could say that the sway contributed to this actual redirection of movement.
However, most of the time the sway is not causing turn, and it is direction simply against the movement - it is only at that instant of turn that it is directed sideways to the movement. "SRR" looks fine on paper - but given the body rotation, that "R" is usually a direction againt the movement, and only very briefly one toward the inside of the grand circle approximated by our progression.