For my understanding I made a chart from "ZetaTalk: Characteristics" shown below.
Note: written Jan 15, 2001
During the Transformation, groups of humans will not be separated entirely by orientation at first. This is due to the mix of orientations in human society today, done deliberately to facilitate 3rd Density choices among humans who must decide their orientation - Service-to-Self or Service-to-Others. Often, a highly Service-to-Self entity is placed to reincarnate into the arms of highly Service-to-Other parents, so that both can become familiar with their future situation, where clear polarizing of the orientations will occur. In 4th Density spiritual existence, where the orientations are separated, there is no mix except during those occasions where an engagement is agreed upon, and then those in the Service-to-Other meet highly Service-to-Self oriented entities, and vice versa. Thus, it is often deemed an education, a preparation, to mix these entities together in family or small communities, during 3rd Density life just prior to a Transformation.
Thus, during the cataclysms, many highly Service-to-Other families or small communities may find they have a highly Service-to-Self child among them, or someone of this orientation who is physically dependent upon them in some way. Do they cast these young children or dependents aside, in order to become a fully Service-to-Other group? This is in conflict with the nature of those in the Service-to-Other, especially as there can be no certainty that the child or dependent person has truly decided on a Service-to-Self path. What if they are undecided, dithering, and abandonment would push them in the wrong direction? The Service-to-Other human wants to establish a tone of hope and caring, for all in the group. Should these individuals be punished, during the Aftertime, living in desperate circumstances without help from high tech hybrid communities, only because they are caring for some who are not fully Service-to-Other?
There are rules visitors and hybrid communities are under, set by the Council of Worlds to ensure that the Transformation proceeds apace and is not delayed unnecessarily. The line where visitors or a community of hybrids can assist their human neighbors, or not, is determined by who controls the community of humans. We will give examples.
After the Transformation, those in the Service-to-Self do have high tech advantage, but they are strictly quarantined from those in the Service-to-Others. This is controlled by the Council of Worlds, and prevents those in the Service-to-Self from conquering those they would make as their slaves. But during the Transformation process, where mixing can occur and frequently does occur, such a strict separation is not possible. Thus, where leadership is not under a Service-to-Other motive, these communities cannot have a technological advantage outside of that currently achieved in human society.