Is it possible that our doing Lightworker Healing Protocol sessions now, helped heal us in the past when we were involved in those corrupted extraterrestrial societies?

This is, in fact, happening because of the work done across time domains. Those humans present, receiving a Lightworker Healing Protocol session, who have been in other incarnations within the societies of extraterrestrial beings now hindering human progress, will have a healing outreach done to their lifetimes in that mode of negativity, and that healing will, in turn, cause a looping across time domains and help their progress in the current incarnation they are experiencing now. This can help to illustrate the importance of the Protocol, and its vast reach, and bring into focus the great potential benefit from such circumstances, as you are being influenced continually by parts of your soul doing other things elsewhere. It will all impinge on you in some way by referencing what is going on in the akashic records as things are added with various energetic signatures, many of them recording unpleasant consequences of the mistakes and victimizations in other lifetimes, and contributing to the pool of karmic energy influencing people on an ongoing basis, and charting their future course with new incarnations. Healing this is paramount and will help all involved—victim and perpetrator both.